Maybe the way to clarify questions about gender is to allow people to use a “genderbender” gender. Just judge my gender based on the type of clothes I’m wearing that day.
I found that saying I didn’t care nor need to hear about anybody’s fetishes usually ends the discussion with seminar arguement leftists.
Sex is a function of biology.
All this gender crap is about the way people think about their sexuality. It is a small subset of sexual fetishes, not a physical difference as sex is.
Forcing them to try to remove transgenderism from fetishes like infantilism or sadomasochism or maid play etc. so that they can claim it is equivalent to a physical difference pretty much ends the argument early. And they never get to their subsequent talking points.