People act based on emotions, specifically feeling like they’re part of the in-group. You know the old saying “Would you jump off a bridge if your friends all were jumping, too?” Well, the answer is clearly yes. Most people are stupid like that.

I mean, we all are sometimes. It’s impossible to know and verify everything so we trust our friends. But for some people it’s reached a toxic level of “vaccines are bad” and “banning books is good”