I'm going to make a joke about a weirdo at the bar
Do you think that you will feel better after making the joke?
I want to feel more confident, also I don't like him because he looks weird.
Everybody wants to be confident. You can do that without singling somebody out for something they can't help and boosting yourself and others' expense.
Do you see me or him? If you see him, you'll finally understand what I'm talking about.
I see both of you and I still do not think that making a joke is okay, It is wrong to disrespect someone just because they are different than you.