My Little Pony: Friendship is Magic - Image #208,302

Just because she has a Rainbow mane and is a tomboy doesn't make her gay…

Thing is, there is no evidence for it, but there is also no evidence against it.
There's nothing wrong with it, either way.
I think people are so dead-set against her being gay because she hits too many stereotypes.
While I agree that stereotypes are rarely accurate, it doesn't mean they are always *in*accurate.