He's not a survivor, he's an idiot and flat out evil.
Both could have made it.
He says he blots out his feelings but he doesn't.
He shot Otis out of fear, he opened the barn out of anger, he tried to rape Lori and had Sex with Andria out of lust, he wanted to kill Rick out of Anger etc.
All he seems to do is play off his and other people's emotions.
He uses rage and hate and anger; he says that he "turns off", but that's stupid anyways!
You should turn on in a survival situation, go harder, push stronger, try harder, try to be better, be more aware of your surroundings, etc.
Think more; he just always seems to let his emotions get the best of him. :/
But he has no conscious!
What a douche.