How is this idiot still allowed to serve? Even if his days are numbered?

This is about a prior commander (CW2) who happens to still be on our books. Little backstory, when this man took over our unit in 2017 I could see from day one he was “off” to say the least. During our initial interactions I could tell he just wasn’t right. He did and said a number of things I’ve never seen, heard or would have expected from a commander (19 years of this. I’ve been through a few). I attempted to bring these things up to higher and was basically just written off as the disgruntled 1SG who didn’t like his boss. They were right, I didn’t like him at all but I was concerned because he was just flat out bad for the unit. That was highlighted on an absolute sh*tshow of a deployment in 2019. We get back and he immediately changes his name to some off the wall BS. Goes on some near year long training with his civilian job (DoD). When he came back he disappeared for a few months. Turns out he had been pulled over because he was driving an unregistered vehicle with sovereign plates. He didn’t go to court. Bench warrant was issued. When they went to arrest him they noticed he was living within 500’ of a school which he is not allowed to do due to an aggravated sexual abuse of a minor charge that he pled guilty to in the 90’s. He spent nearly 80 days in jail. Mostly because he’d not cooperate and spew that sovereign crap in court and the judge would just send him right back. I honestly thought I’d never see him again. He showed up this past weekend to drill. Sovereign plates and everything. I was not at all kind to him. Basically told him that sovereign BS has absolutely no compatibility with military service and he’d better stay the hell away from my Soldiers and myself with a little rougher language. He told me I was being insubordinate. Told him I didn’t care and he could write me up. There’s also the fact that he sexually abused a minor. Why the hell is this man still allowed to continue serving in the military? Even for another day. He is an embodiment of conduct unbecoming. The FBI classifies the sovereign citizen movement as a domestic terrorist organization. Why isn’t he gone? The man is a flat-out nut as well. He legitimately believes he is the rightful owner of half of the state of Alabama and has filed paperwork to get it back. Hope none of you live there. You’ll owe him dues when he gets it…