And it's not like "leftism" doesn't fall into this trap - the anger of many of the most vocal leftists has led to division and violence throughout history and into the modern era.
"Leftism" is sort of a... stupid name, really. You can attach "leftism" to a whole bank of things that folks who care about community, self determination, and cooperation also find abhorrent.
We think in terms of politics, as if that's natural.
But that's an insanely corrupt way to look at the world.