Just saying...
People should be able to headcannon/au what they want. Whether it's gender, sexuality, universe, etc. people should be able to think about them how they like. They're called HEADcannons and ALTERNATE UNIVERSES for a reason. You don't have to agree with them, you don't have to like them, you don't have to look at them, you don't even have to THINK about them. What you do need to do, however, is respect people's right to be creative. Sending them useless hate or "facts and opinions" won't help the situation and usually won't stop people from making their art the way they want to make it. It's their art and they have creative liberties over it. Stop hating people for such trivial matters. Let them have their headcannons and au ideas. Thank you.
