When you say, “fucking stupid” is “stupidity” actually the problem? Like what, they can’t do math?

Raw brainpower is only a fraction of what’s involved in good judgement. Book knowledge is another fraction. But there’s a whole host of other factors that can influence decisions. Poor impulse control, psychological hangups, bad habits, greed, privilege, etc. That’s assuming that the education they received actually taught them how to think critically in the first place.

The vast majority of the time, when I have a problem with someone, it’s not just a matter of lacking brainpower or education. Condensing those problems down to “stupid” is, aside from any other concerns, simply inaccurate.