I have a brother who watches shit like OAN. I once overheard him telling my parents about that synagogue tunnel story. One time, my family was discussing the French Revolution and he kept arguing that the "lawyers and bankers" tricked the "inner city poors" into rising up against the "good Christian leaders." Even my center-right history buff brother pushed back and later agreed about the fash vibes.
There's so many red flags that he's deep into fash shit but he still acts normal and friendly to me (I'm closeted towards him and my parents). Most of my family can see it but my parents both don't know the signs and don't want to see it, so it's a very uncomfortable dynamic, and I feel like he knows how to take fascist rhetoric and rebrand it to be amenable to my parents. It's like a PVP disabled zone.
He's a veteran who came back and started doing meth to cope, and recently either started doing it again or just went off his meds because he went from standard levels of paranoid schizophrenia that all fascists have to the level of paranoid schizophrenia where you start making actionable threats in a group chat while on parole so for now he's in a jail cell. So that's cool, the world is safer with him there.