This poor bloke who found out he was infertile during a premarital medical exam, for instance: https://pmc.ncbi.nlm.nih.gov/articles/PMC7760426/

> It's really not, though. They found a marker they can test for, and have clearly defined exceptions.

Have you heard of the politician's fallacy, "something needs to be done, this is something, so this needs to be done"...

Your argument here is that... needing a test, and having a test, doesn't mean it's the right test.

You're also assuming that we even need a test... evidence (no transfemale olympians ever coming not dead last) suggests we don't.