The other problem is that ideas are contagious, so when a few wackos shout out their extremist views, other people start thinking this may be normal, and more a

The other problem is that ideas are contagious, so when a few wackos shout out their extremist views, other people start thinking this may be normal, and more and more of them become sympathetic to it. This is why so many Americans believe in crazy BS conspiracy theories like "adrenochrome" now; in the pre-internet days, this stuff couldn't go very far. This is why those family gatherings have gotten so bad: decades ago, very few people believed in "extremist" stuff, but because of social media and other internet media sources, many of those views have become somewhat normalized so that a large portion of the population believes them.