too embarrassingly retarded in their social views
I can't imagine most heroes reeeing about troons or illegal immigrants. Maybe the later, but not something they'd go out of their way unless it's dealing with human trafficking or drug dealing, and in that case it's more for those issues than whether they're illegal or not. Voting for tighter border security, sure I could see that, but the troon issue, nah I can't see most heroes being against them. They know aliens with fuck knows how many genders and orientations.
Superheroes in general revolve more around violent crime than more complex social issues.