[blablabla123]

Not sure about that, I've been member of the German Green youth organization and at least when I was younger identified as Green. During that time I had a lot of vivid discussions with people from far left over neo-liberal to right conservative. The discussions were actually often heated but without exception respectful.

Nowadays I rather observe something different which leaves a rather chilling sensation. Discussions don't happen or happen just passive-aggressively. People hide their political beliefs and best you get an indication from cynical remarks that often become personal.

It's not fun to discuss politics anymore and I usually rather prefer not to.

> e.g. incels, preppers, anti-vaxers, jihadists, etc

If you take the argument to the extreme, hot heads are not the people who run amok. But rather people who never speak up outside of their peers, hide anonymously and are not properly organized with open meetings, regular sessions and all that...