yep you are exactly right, though I don't know how you expect cis people to know this without interacting with trans people who are able to complicate their view ...
it sounds like you justified the thread for me - the good that comes from a thread like this is the possibility of cis people learning more about the diversity of human biology. I don't expect anyone to change their views overnight, but refusing to talk to cis people about their views just because they are problematic doesn't seem right to me ๐ค
still, you're not entirely wrong that the discussions can just become a way for transphobia to be aired publicly, so I understand why other trans folks might not want to be exposed to this