Be careful, your falling into the same cognitive trap as _ists. There is no universal response to rejection or pain, but some responses are far more memorable which feeds into the idea that there exists some pattern. Consider in the US women kill more men than men kill women. Violence in the US is at the lowest levels in the history of this country. Historically, Christians have been more violent than Muslims.
Reading that, it's easy to feel cognitive dissonance as preconceived notions don't actually fit reality. But, that's the thing intuition is not setup to analyze society in much the same way that people are vary poor at balancing risk and rewards.
Group think? There's only two people in these comments with that opinion here. Also we aren't bullying men, we're just trying to understand them through controversial and offensive theories. We're not treating them differently.
Men on the other hand DO seem to treat women differently. I've seen it myself many many times.