Well all you're really saying is you don't agree with the law, and I happen to. As I've already pointed out here, if you attack someone, especially violently, and it becomes clear that the attack was motivated based on some or all of the criteria already explained, that attack could well harm more than just the individual. It may or may not deter such crimes, (I guess if you're a racist, xenohobe or whatever you're gonna do what you're gonna do) but the perp will face a stiffer penalty.