I don't get why this is being so hard for people to process.
There are a lot of opinions on this subject, and there are a lot of social trends that happen in relation to this subject, and then there are facts.
FACT: Men in general are bigger, stronger, and tougher than women. (And perhaps more aggressive.)
This fact is not negated by a number of other important facts relating to this issue, such as:
1) In any specific heterosexual relationship, the woman could be bigger, stronger, and/or tougher than the man.
2) Even if the man is bigger, stronger, and tougher than the woman, the woman can still be abusive by any number of means.
3) (…and this fact may technically be an opinion, but I'm hoping it's an opinion we can all agree on) Abuse is wrong regardless of the relative size, strength, and toughness of the abuser to the victim.
Look, I'm a big guy; six-foot-four with a hefty frame, and I'm stronger than most people despite the fact that I perform virtually no exercise. Nonetheless, while I've never met a woman who is bigger than me, I've met plenty who I'm sure could kick my ass if they wanted to. There is a problem in society however that because of the FACT that I listed above, it tends to be that when a woman and a man fight, psychologically the man always loses.
When I was in junior high, I was on the wrestling team. One day we had a meet against another school, and it was found that three members of their team were girls. All three guys on our team who were slated to wrestle a girl simply forfeited. I didn't fully understand why then, but now I see that if they had stepped into the ring, they would come out to the ridicule of "You got beat up by a girl?" if they lost and, "You beat up a girl?" if they won. It's unfair to those poor girls who wanted to show that they could compete in a traditionally male sport, but they weren't victims of those boys, they were victims of society.
To wrap this up, Why did I bring that story up? It's because those concepts are still part of our society today for people of all ages, and if a man is being abused by a woman, he loses if he fights back, and loses if he doesn't fight back. But once again, in just about every way that matters, this is also true with the sexes reversed. In short, abuse victims can't win, the best they can do is forfeit, and even that is difficult.