You don't ever make a counter argument.

Their methods are what makes them villains. Choosing to arbitrarily hurt and kill others just because you've been hurt, isn't anything that should ever be lauded. It's something to be pitied and shunned. And that's being generous with some of the characters you've talked about.

Anyway, I'm going to bow out of this now. If you're being serious about this, you have problems.