Could be his loneliness leads him to seek out that kind of political thought, cause and effect aren’t clearly established here. Isolation and other stressors have been known to drive people toward more reactionary conservative ideas.
But like others have said it could be his worldview leading to him feeling lonely and isolated, maybe threatened by changes in the world. It’s not your responsibility to help him but I occasionally see people become less reactionary when I try to include them more, not directly contradict them but steer him in kind of an anti-corporations and wealth-inequality kind of way (or something like that) when they act like this. He might be trying to bond over a what he perceives as a shared patriotic struggle and become your friend?
Even if you don’t agree 100% it’ll probably be a small relief if he knows someone he trusts has concerns about the percieved injustices of the world, and letting him vent probably helps too. Traditional Christian masculinity can be kind of claustrophobic and I could see him talking with OP as trying to broaden his horizons, as paradoxical as that might seem.
Either way good luck to OP and I hope the coworker’s outlook improves.
Honestly, browse by All, Active, Last 6 Hours or New and block communities you dont like. Subscribe to your favorites but since this is more garden hose than firehose, drinking from the tap isn’t too bad.