The questionable views we’re talking about here are… Let’s just say we’re not talking about milquetoast stuff like “we should be a bit stricter with immigration” or “lower taxes on the rich”, but views that are far, far outside of the mainstream in most places in the world.
There’s also a psychological trap. It doesn’t make falling for it acceptable, but it does make it more understandable.
Humans naturally seek belonging, and almost any group can fulfill that need. Many such groups also use “us vs. them” rhetoric, which can make you feel more special than you actually are. Feeling special is another human need that groups often fulfill. Humans crave direction and purpose, and most groups provide both.
Just look at religious groups, environmentalists, political ideologies, conspiracy nuts and racist to see what I mean.