He doesn't even know what fact are

This is the dumbest response to any sort of argument and meant intentionally to make an argument rather than a discussion. Facts don't care about feelings, but people do. And if you don't care about the person you are talking to you are just a hack looking to exploit.

Granted I'm human and have made this mistake when people forget about facts and try to bring them the side I see and have faultered. But I'm not trying to exploit it into a brand of morality and claim I am better than anyone else either.