Surely you can source the “numerous documentaries”
Yeah I’m here to be your research librarian. Don’t be a jackass.
No need, here is from GLAAD, please scroll down to where they discuss that a transgender’s sexual identity is COMPLETELY separate from their sexual orientation. They use the example of a woman who becomes a man but is then a “gay man” because they are still attracted to men. They state that sexual attraction stays the same just like they claim sexual identity does.
http://www.glaad.org/transgender/transfaq