Should active or reserve mil pers be discharged "other than honorable" for displaying or assoc with Nazi or White Supremacy symbols/groups?

Displaying, no, but in today's PC environment the people who do this are more likely than not to run up against other UCMJ infractions that will lead to discharge.

Displaying? No. That is covered under 1a and just displaying it means nothing. Many people have a rebel flag. Also people collect vintage material like flags and such. The caveat to that is if the display of such causes an issue with other personnel in the unit. IE displaying a rebel flag in the same room as a POC; a Nazi flag in the same room as say a person of German, Jewish or other heritage that finds it offensive.

As far as association with those groups? For a repeat offense after being ordered to NOT associate with them, then yes. But once it is discovered they associate with say the KKK, Aryan Brotherhood or some other such ground they should be counseled with the appropriate regulation reference stating that such association is conduct unbecoming and a poor reflection on the Army as well as a degradation of morale and unit readiness. Then follow on with an outline of cease and desist... OR...

If it is found go for due justice and investigate. If known to be attached to or affiliated with these groups then seperate with a no reenlist code on the DD-214 (if service is honorable). HOWEVER, just being affiliated with them is no crime so no other than honorable is warranted. Displaying a flag or a symbol is no crime, not good for morale and probably not the right thing to do but it isn't a crime. Other than honorable condtions are for crimes against the UCMJ and currently there is no statute in the ucmj for any of the above. BUT... you could probably attach Art 82 Conspiracy, Art 117 Provoking speeches or gestures, Art 134-12-Disloyal Statements if you stretched is far enough. Usually when outed if someone is affiliated it gets around and then the fights start etc and that is where you can get them withbeingprejudicial to good order and discipline. But until it is captured in the UCMJ you have to go other routes for dismissal...IMHO.

Maj Marty Hogan
Lt Col Charlie Brown
1stSgt Glenn Brackin
Cpl Craig Morton
SGT David A. 'Cowboy' Groth
COL Mikel J. Burroughs
SFC Joe S. Davis Jr., MSM, DSL
SSG James J. Palmer IV aka "JP4"
LTC Stephen C.
CPL Dave Hoover
PO3 Bob McCord
Lt Col John (Jack) Christensen
Sgt Wayne Wood
PVT James Strait
SFC Jack Champion
MSgt David Hoffman
MSgt Stephen Council
SGT Elizabeth Scheck
PO1 H Gene Lawrence

You're missing a group.

I went through this argument in the '70's over "Black Panthers" vs. "Aryan Nation". Ask DOD what their decision was than; the major difference between then and today is the amount of poisonous venom spewed by the Main Stream press. No investigations into allegations just pure venom without facts. Did you not hear of the NYT https://slate.com/news-and-politics/2019/08/trump-blasts-new-york-times-racism-witch-hunt.html

So if you have a Confederate flag and honor your ancestor who served in the Confederate Army, then you are a racist. Is that what you mean?? BTW, Public law 85-245 establishes that Confederate soldiers are of equal status as Union soldiers. I live in the South and have seen a lot of Confederate flags. There is a Confederate graveyard in the city of Jonesboro, Georgia. Do you want the cemetery destroyed and the bones of the Confederate soldiers scattered to the wind?? BTW there was a black battalion in the Civil War which served on both sides of the Civil War. The current trend of destroying all Confederate symbols are the same tactics of the Red Chinese and the Cambodia rebels who killed everyone who wore glasses with the goal of re-writing history. The anti-Confederate flags and statutes are diverting real issues that should be addressed. There was a black county commissioner in Henry County, Georgia who got a gift store closed because they sold small Confederate flags as well as other items at the Nash Farm battlefield. The commissioner claimed that it wasn't a battlefield despite that the US Historical Commission had already certified that it was a battlefield. I'm getting tired of people making an issue out of anything that they think insults them.

NAZI and White Supremacy are not the only racist groups in the US and targeting them alone is racist on its own merits. People need to remember hate begets hate and hating on certain groups only empowers the racists.

Any extremist group regardless of what it is. There are fringe groups on the left too, i guess you just forgot to mention them.

An unfortunate time to display anything. Not pulling for this Marine, not defending either...

In the diverse traditions within Hinduism, both the clockwise and counterclockwise swastika are found, with different meanings. The clockwise or right hand icon is called swastika, while the counterclockwise or left hand icon is called sauvastika.

The swastika or sauwastika (as a character, 卐 or 卍, respectively) is a geometrical figure and an ancient religious icon in the cultures of Eurasia. Swastik is used as a symbol of divinity and spirituality in Indian religions.[1][2][3][4] In the Western world, it was a symbol of auspiciousness and good luck until the 1930s, when it became a feature of Nazi symbolism as an emblem of Aryan identity. As a result of World War II and the Holocaust, most people in the Western World associate it with Nazism and antisemitism.[5][6]

The name Swastika comes from Sanskrit word Swastik[7][8][9] (Devanagari: स्वस्तिक) meaning 'conducive to well being' or 'auspicious'.[10][11] In Hinduism, the symbol with arms pointing clockwise (卐) is called swastika, symbolizing surya ('sun'), prosperity and good luck, while the counterclockwise symbol (卍) is called sauvastika, symbolizing night or tantric aspects of Kali.[11] In Jainism, a swastika is the symbol for Suparshvanatha – the seventh of 24 Tirthankaras (spiritual teachers and saviours), while in Buddhism it symbolizes the auspicious footprints of the Buddha.[11][12][13] In several major Indo-European religions, the swastika symbolizes lightning bolts, representing the thunder god and the king of the gods, such as Indra in Vedic Hinduism, Zeus in the ancient Greek religion, Jupiter in the ancient Roman religion, and Thor in the ancient Germanic religion.[1 1]

The swastika is an icon which is widely found in both human history and the modern world.[4][11] In various forms, it is otherwise known (in various European languages) as the fylfot, gammadion, tetraskelion, or cross cramponnée (a term in Anglo-Norman heraldry); German: Hakenkreuz; French: croix gammée. In northern Europe it has also been called a sun-wheel.[14][15] In China it is named wàn 卐 / 卍 / 萬, meaning 'all things', pronounced manji in Japanese. A swastika generally takes the form of a cross, the arms of which are of equal length and perpendicular to the adjacent arms, each bent midway at a right angle.[16][17]

The earliest known swastika is from 10,000 BCE found in Mezine, Ukraine. The symbol is found in the archeological remains of the Sintashta culture and Indus Valley Civilization as well as in early Byzantine and Christian artwork.[4]

The swastika was adopted by several organizations in pre–World War I Europe, and later by the Nazi Party and Nazi Germany before World War II. It was used by the Nazi Party to symbolize German nationalistic pride. To Jewish peoples and the targets of Nazi Germany's genocidal eugenics, it became a symbol of antisemitism and terror.[5] In many Western countries, the swastika is viewed as a symbol of racial supremacism and intimidation because of its association with Nazism.[6][18][19] Reverence for the swastika symbol in Asian cultures, in contrast to the West's stigmatization of the symbol, has led to misinterpretations and misunderstandings. The symbol is still rallied behind as a sign of Neo-Nazism.[20][21]

https://en.wikipedia.org/wiki/Swastika

We condemn from the narrow perspective we hold to. There are many religions and beliefs that still use the sun wheel as a focal. Wiccans rarely display it for 2 reasons: 1) Nazis, and 2) Wiccan. Need I say more? It is unfortunate that 90 years of history has wiped away thousands of years of history and left hate in its wake.

Sure, as long as we include socialist or anti American thought or association, we also have to include racist groups such as La Raza, Black Panthers, Antifa, Muslim Brotherhood, Black Lives Matter, Queer Nation, and hundreds of others, funny that you only pick the two that you did? Maybe you are biased and or Anti American yourself.