To understand humour (not to find something funny, just to understand what it is and when something is intended as it) one must be able to handle paradoxes.

AI can't do that, and neither can "lefties". They simply get stuck in an unsolvable loop, and gets frustrated and angry.

And since it's quite natural to want to remove sources of frustration, they have to make up a rationalising framework as to why said source is WrongBadEvil just for existing, no matter actual reality.

That's why a "lefty" is more angry at someone calling a school-shooter "he" than at the actual shooting, f.e. Their feelings and perceptions matter more than reality (or: their feelings and perceptions /is/ reality to them).