Since it is practically impossible to have a good discussion of feminism (or anything else) on an unmoderated online forum, it’s much easier to just call people out for having terrible opinions.
On a constructive note, in the last fifty years, we’ve managed to progress from the creepily misogynistic (à la Mad Men) all the way to the gloriously absurd (i.e. “Speaking as a man, I would like to point out that this is a poor example of sexism because…”). Maybe in another fifty, my STEM field will have an actual gender gap, instead of a gender chasm.