I believe that eventually, transgender people will be more or less like gay marriages. Repubs will be the absolute last in America to accept them. And even then, there will be tons who never do.
I believe what donald trump himself said in 2016... A transgender woman should use "whatever bathroom she feels most comfortable with".
I believe the donald wouldn't be caught dead saying somethin like that now.
Because being outraged about trans people in bathrooms, etc is too valuable to Repubs. Their actual policy is dog sh*t so they have to rely on hyping stuff like that. Well that, the electoral college, and twisting democracy into a pretzel.
But as far as biological realities I'm not sure I have heard a single person who "completely rejects" them. Maybe some leftists do idk (?). Tons of people seem to reject any nuance in that conversation though. They might acknowledge that more chromosomal differences do exist besides XX, and XY, and genital variations among them.... but they will say oh but those are a very small minority!! ......Cool, so are transgender people. 🤷♂️