What they do not say, according to recent statistics, is 40% of domestic violence is aimed at men.
I'd ask you to back that statement up with a link.
From what I've seen as my years bouncing and as a peer support Councillor is that women abuse men 60-70% of the time, not 40%. I've probably kicked 100 women out of the bar for assaulting a man, whereas less than 10 times escorting a guy out the back door for assaulting a woman. (And we do the back door because most of the time other guys want to kick that guy's ass.)
Women figure they are weaker so they can't do any damage. The damage they do isn't physical, but it is there.