The fact is that men (specifically cis het white men) are relative newcomers in the "getting shit on" world. This is NOT minimizing the issues we face - they're real and should be taken seriously - they're just new (see: women got the right to vote about 100 years ago).
No, this is a misrepresentation. Most men didn't have the right to vote either, just the landowners. If you look at when men got universal suffrage, and when women did, that's often close together. And then we're not even speaking of black men and women.
But the left is realizing that it isn't cis het white men that were the problem, since they're also getting shit on now too - it's the rich. It's always been the rich. And that's why we're seeing "no war but class war."
Yes, it's always been the rich. Not men. And where are we seeing "no war but class war"? The modern "left" appears to be in the pockets of the rich, always looking for the next minority to champion and forgetting to champion the working class.
To be clear, there are still folks talking about men as a collective being a problem. My only advise is to mentally correct "men" to "the stereotypical men with traits that this person thinks negatively of" and not take it personally.
And I would advise to not take bigotry that lightly. We should expose that and demand that people do better.