These child discipline discussions always seem to degrade into claims that physical discipline is the same as abuse, and citing bad examples. This, of course, is not the issue. Physical discipline is not the first port of call, but it has a role; and in my opinion the outcry against it is at least partially responsible for the slipping of standards. Parents who think whatever their little darlings do is ok because it is the sort of thing children will do (if you let them). The rest of society will just have to put up with it. Negotiate and explain why something isn't acceptable first, but if that fails you need a fall back.
Yes I'd bet the children are against it. So would I have been at that age when I wanted to do whatever I liked. What does hitting a child teach them ? It teaches them that authority is to be respected, that they can not expect to play up to get their own way since undesirable things happen if you deliberately act badly. I do not see why some claim it teaches that it is ok to hit others when you are not the authority, I can only assume those who hold that opinion must be basing that on their own thought processes.