why are white men in America so fucking angry?

I'll give you my theory. Bear in mind it's just a wild guess, and I have no background in analyzing social issues. So take this with a grain of salt.

I think it's because they (we) are told they're supposed to be the top of the game. The articles that say white men make up the majority of CEOs. Or that white males have much of the wealth. Then they look at their own lives. Well I have a shitty job, drive a shitty car and live in a dump I can barely pay for. So it makes them angry when they see a woman or a non-white person "get theirs" because someone who "shouldn't" have gotten it did when they "should" have but didn't. Basically "they got what should have been mine."

It fits with being angry at women and non-whites and not other white males, because the perception is it fits that they "got theirs."

I'm not saying it's appropriate (it isn't), and I have no research or human behavior education to base this on. It's just me speculating out loud.

For what it's worth, my father is an angry white man who is angry at other white men. His life didn't pan out like he wanted it to, and he's angry at people who he perceives as doing well.