I see bad stuff on the street all the time that I don't do anything about. I do bad stuff myself all the time. The goal is not to somehow be perfect - that's silly, that's naive. The goal is to just recognize there are choices in front of us, and to try to make better ones.
Humor has historically been tied to the mores of the day. The Yellow Kid was predicated on what people thought was funny about the immigrant Irish. When you're different in a society, you're funny.

