That is basically the argument that the character makes in the show: that gay men need to learn to love all "men's identified" bodies, regardless of whether they have a vagina, breasts, etc. This is also an argument that people make IRL. Some take it further, and believe that everyone must be pansexual: even those men who like bio men and transmen are still "problematic" if they do not extend the same attraction to women, and vice versa for lesbians and heterosexuals of either sex. There's an article I read a few years back that has since been pulled down from the net, which basically said that our attractions must take into account the other person's relative "privilege." Those higher on the stack (say, white, cis, male, and physically fit) had a moral imperative to include those with less "privilege." The end of the article had the author stating that yes, this means gay men must try to make themselves like women, as men had privilege over women.

This was not a two-way street however, and those with less privilege were free to reject those whose characteristics gave them a socially elevated status.

The entire thing made dating and sexuality into some sort of tabletop RPG, with the players exhaustively going through checklists and doing all these additions and subtractions to ensure that yes, their lawful evil elf mage can in fact escape the fireball spell cast by the chaotic neutral halfling wizard.