Treating all men as potentially dangerous and being an active asshole to them is not the same. You can be careful without being an asshole and tbh in most situations its actually safer to do so. You can also vent about your experiences with men in a way that doesnt create an unpleasant situation for those around you.

I also think its not as direct as you make it out. To go from mistreatment of oneself to mistreating others is a big and not necessarily logical step. I think lots of other factors are at play, many that often get summarized under the term “toxic masculinity”.