Homo Genital Erectus

Alright, listen up, buttercup. This joke is saying that "homo sexuals" (the joke writer can't even spell homosexual) are descended from "homo genital erectus" which is a fake species the author made up. He says they went extinct because they were "easily offended and unwilling to breed." Get it? It's supposed to be funny because it's a dig at gay people. But here's a fact for ya, genius: Humor is subjective. Your joke isn't objectively good. It's just…there.