Beating up your wife is the absolute pussiest, lowest-of-the-low thing any man could possibly do. Motherfucking assholes.
There are some people who could hit their wives, and some people who can't. No matter how obliteratingly drunk you get, if you're one of the people who can't hit your wife, you're not going to do it. Someone who could do it is going to end up doing it at one point or another - alcohol is just a convenient way of hurrying it along.