There is no excuse to hit a woman, even if struck I wouldn't, but I sure as hell would restrain them by any means necessary so that they are not able to hit me again, if they happen to get hurt oh well they shouldn't have hit me in the first place.
The guy sounds like a piece of shit as well as his brother. They should be castrated so that they can no longer pollute the gene pool because it sounds like it's a family thing.