I think the common misconception is that the woman is defenseless. Several years ago, people were complaining about how women were being paid unfairly. This, I believe, has now been dealt with completely, but men are treated unfairly by the police all the time, and nothing has yet been done.
Whenever domestic violence is reported, the police go to the scene with their minds set on the woman being the victim, and the man being the assailant, but it can often be the other way round.
I know this from my friend who's mum works as a psychologist and I believe she runs a sort of clinic where she talks to men who have been domestically abused by their partners.
In my opinion, if the man is being attacked, he should be able to defend himself. I believe these memes should come with some sort of disclaimer. "Real men don't hit women" unless in self defense.
And I believe there is one that says "Real men don't cry." I think this is stupid as well because why can't we cry. We have feelings too, and crying is a way of showing we are upset, sad, or extremely happy.
I believe that society's man is someone who has no emotions, is strong and the breadwinner. This may have been the case historically, but the world is different now.