spoiler
It's so cool when people reinvent binary gender essentialism but cloak it in progressive language. 
What gets me is that it wasn't even accurate use of the terms, like AMAB used to refer to people with d*cks, which obviously excludes a lot of trans women anyway. I get there's certain medical settings where terms like that can be useful, but why insist on using it in contexts where it's neither accurate nor otherwise helpful in any way?
