

If you were to say “black people are bad” then the rebuttal typically becomes “due to established power structures, white men can’t be oppressed, therefore I can say what I want about them”.
I think it’s hard to have a reasoned discussion where you say “all men do X” because for every X, there’s probably a bunch of exceptions. There is a great amount of variance in male behavior.
A big problem here is that not everyone has a common definition for racism and sexism. Some definitions take existing power structures and historical context, and others don’t. A discussion about this topic should be started with what specifically each participant believes these terms mean. Otherwise you have two people talking about “sexism” but they are just talking past each other because they lack a shared understanding of the term as it is used.