I'm a student at a large public university. One of my classmates in my degree program is very obviously a dangerous asshole. He's a misogynistic, racist, Bible-humping, gun-toting, wealthy white boy. Wears a Hawaiian shirt to Zoom classes and calls me a "climate Nazi" in front the the professor. Spending five seconds around him is enough to see he has serious brainworms. Last year, he attempted to physically assault myself and a classmate because we're openly atheist. I alerted the university and filled a report with campus authorities. Unsurprisingly, they did nothing.
A good friend of mine alerted me today that's he bought a semiautomatic weapon. I'm really uncomfortable with this. He has a major problem with me (to the point of posting to his alt-right friends that he's going to "get" me). I am the president of a small student org on campus. He knows that. I'm concerned that he may show up to one of our meetings. Obviously, I can't get the university to do anything, and the cops would probably pin a fucking medal on him.
TL; DR- There's a pyscho alt-righter who has threatened me in the past, and I just found out he bought a semiautomatic weapon. Is there anything I can do to keep myself and the members of my club safe?
My first thought was "if he tries to do anything stupid to you again get some friends and put him in his place, whatever that might involve" but then I remembered that every second American psychonerd has an AR15 and bulletproof vests and then I read that part of your post...
On the other hand it doesn't sound to me like a person who would go there. I don't know for sure of course, you know better. But I knew some people like that and they're usually all bark and no bite. I am sure he won't try to kill you but he may cause you trouble.