This is what's dangerous. It could accurately be labeled as "transsexism" or "omnisexism."

The core philosophy, of the archetype whom you're describing, is the belief that everyone should be willing to become "omnisexual" (open to exploring romantic/sexual relationships with any other human being, regardless of anatomy).

Why can't we just accept that there's a spectrum? Many people are 100% heterosexual, many people are 100% homosexual, and probably even more people fall into various points along that spectrum (some perhaps fluidly so).

Transgender people can be of any sexual orientation, regardless of their sex or gender...but, obviously, their lived experiences are different because they were born in the wrong body.

Why can't we make room for ALL of these identities to coexist and lift one another up?