I've seen that I expressed myself in a confusing way when I said "heterosexuality doesn't have to be the default, and that era is ending", I don't mean, LGBTQ identities will become the majority, what I meant was, the assumption of heterosexuality will no longer be made. In the same way you shouldn't assume people's handedness because, though you know most people are right-hand dominant, you also expect that any group of people of a significant size will contain many left handed people.