You're confusing the fact that the existence of LGBTQ people is being acknowledged finally in the mainstream with some sort of shift of what the 'dominant culture' is.

All of these things you listed merely acknowledge that non-cis gendered people exist, that's it. There is no massive shift in the mainstream culture. In fact, there are legions of reactionaries incredibly aggrieved by having this existence "shoved in their faces" such that they will push for laws banning discussion of sexuality in schools, call bomb threats in to hospitals, or lose their shit when gay people kiss in a movie.