Morals are what you think other people should do.
Oscarum Monstrosum's original post makes it clear he makes no attempt to justify domestic violence. He has simply noticed a correlation between its functionality and the aggression of mating animals. It makes perfect sense and I don't understand why anybody would choose to offended by it. It's a conversation.
Yeah, I can easily imagine plenty of times my wife was fluttering around like a butterfly in front of a train and I had to grab her and calm her down. Almost every day, actually. But using physical strength to resolve a dangerous situation is not domestic violence at all. We've got to define domestic violence here. I would say:
Domestic Violence - The physical act of intentionally harming a person who lives in the same place as the aggressor, usually in response to anger or frustration.
So when you put your girl back in her car to protect her and her car, that was not domestic violence. You saw a potential for a lot of bad things to go down thanks to her not thinking and stepped above the emotion at hand to prevent theft or injury. Walking away is a fine strategy when you feel angry and cannot find the words to resolve the situation at the moment. I do the same thing.
To those who chose to be offended by the thread: get over yourselves and be brave enough to actually explore the question instead of parroting society's views.
So, yes. I see domestic violence as a remnant of behaviors that may have benefited mankind at some point in history. Not beneficial today.