Homosexuality is a matter of choice. Strong compulsion, which some give in to. Genetics has nothing to do iwth it.

Why must I be supportive of someone's behavior? Must I support politicians who kill with drones? Must I support rapists?

If I want to kill puppies, I could use the 'homosexual tolerance' precedent to demand you support me. After all, homosexual behavior and killing puppies are both behaviors. And killing puppies rids the world of greenhouse gas offenders.

So if I want to kill puppies, is that protected behavior?