Even that's not the worst it can be.

It'd shock me if right now we're not already getting gay producers/casting directors going to straight actors/actresses and going "Well, you're best for the part...but unfortunately, the character is gay and we just can't cast a straight actor to play the part. I'm sorry, here's the casting couch...you're going to have to prove to me you're gay or I can't give you the part..."