I think that is more due to the Zeitgeist than an evil inherent to women. Throughout most of history, women did just fine raising the young

Its inherent to them because the relationship is inherent to them, once it breaks down due to any reason it will effect them. But that was just one example, merely to show that they can commit "great bads" without being criminal. This was as a foil to the great bads men can commit, which can generally be traced by criminality due to their inherent traits. One of which is that violence.

I'll never understand

Either way, its new for me to not be the most woman hater in the room. And that's a high bar to clear.