I find my far left friends often being quite irrational. Any mention of taking a person in the context of their time (slave owner) for example makes some of the

I find my far left friends often being quite irrational. Any mention of taking a person in the context of their time (slave owner) for example makes some of them explode in anger and cut off contact for weeks at a time. I never make excuses but I stick to my mantra of being honest about history means considering context and that "evil" is not an absolute and changes with morals of society. I believe your friend is on to something. When I (moderate democrat/social libertarian) was at university I had some really good debates with mixed groups of friends at parties, lunch, bbq's etc. Now everyone in their 20s and below (on the left or right) seems to be in their silos and don't want to hear that others are human, and have reasons and logic for what they chose and aren't literally the enemy. Kinda scary...