Do you support building a wall along the Mexican/American border?

I am in favor of a wall or barrier of some sort where practical

There is 1,279 miles of border that doesn't even have a fence yet, let alone some kind of concrete wall. It's a huge waste of money, and will likely never happen anyway. And even if it did, people would find a way to get over it, around it, through it, etc.

CPT Jack Durish POTUS has committed himself with coming out with a border wall during the campaign. He cut to the COA without mission analysis or defining the problem. What is the definition of a secured border? If the mission is to secure the border, Is it to prevent 90% of land based infiltration? 70%? It's like arguing about Destroy, neutralize , harass, or annoy in Artillery effects ala FM 1.02. What is the mission and what is the problem we are solving?

A couple thoughts
- an obstacle (like a wall) is not an obstacle unless it is covered by direct fire, observation, or indirect fire. It's sculpture. Unobserved and uncovered, it will be breached or bypassed. A standard 12' chainlink fence is like a 15 second deterrent.
- obstacles block, slow, disrupt, Turn, or canalize the people on the downrange side of it. These effects dictate where the defenders go. You can't be everywhere at once. It makes possible the defense against many by the few.
- if we were to secure the border to prevent 90% of land based infiltration (without obstacles), you'd need mutually supporting guard posts within visual range (couple hundred yards) of each other with area QRFs to handle surges...24/7. Can Customs and Border Patrol man all that? What would that look like? What would it cost? Sustainment costs? I see in my mind's eye Picket Shacks like in Pakistan. Desolate guard shacks covered by a lone soldier and his family living in a 4x4 shack. Where do I sign up, right?
- what would we do with all the intercepted people? They'd be detention and vetting Facilities. Every time the USG holds someone in one of these, it is vast resources to turn them out. Hearings, petitions, asylum requests, simply figuring out who you have, caring for them while you do this etc. it's an ulcer for the USG, exploited by the Loose immigration lobby.
- I can see why someone would advocate for a wall with sensors to better use Border Patrol, ICE, and DHHS and DOS assets if the wall blocked, turned, and canalized land infiltration to specific places to be vetted, intercepted, and processed.
- to make a dry eyed decision, I'd like to see a dollars per intercept annual cost of the prorated construction, sustainment, and operations versus the cost incurred if we don't (all the things the administration says are costs at the local, state, and federal levels). Otherwise we are evaluating the goodness or badness of visceral emotional response.