The problem with arguing this way is it can't possibly ever convince anyone who doesn't already agree with you. It's a great way to get both sides arguing past each other.
If you're in the right then you can be charitable to the other side and still make your points. That's the only way you'll be heard. Unless all you care about is preaching to the choir. Then go ahead, but I won't join you. It's a good way to farm karma, but a bad way to argue.