Here's a hint.
It's not white dudes.
https://www.city-journal.org/global-extremeist-violence
As usual, the media tries to scare with white supremacy, ignoring the reality that they aren't really the ones to worry about.
Sadly, just to be clear progressive morons, I do not endorse, support, or in any shape approve of any white supremacist group. Or black, red, brown, yellow supremacist group either.