I couldn't believe my eyes seeing this advice to teach young boys to hit girls so as to restore the boys' self esteem and pride.
This is the kind of toxic belief that shouldn't be allowed to proliferate here and yet is embraced with open arms by other users.
That boys can only regain their pride and self esteem by hitting girls leads directly to more violence against women and girls.
Don't know the context here, but to me it looks like that comment simply suggests teaching self defense to a victim of physical violence. Knowing some self defense is generally a good idea, especially if someone has a higher risk / history of being physically attacked. And if your attacker is a woman of course you still need to defend yourself.
That's not the same as teaching boys to hit girls, and I don't think that's the point the comment was trying to make.
Another point I think I have to make: hitting back is not the same as self defense, it is retaliation, and not something we should teach children.