It is exactly the same as the Christians who assume that atheists must never have heard the Good Word.
I was pretty neutral about the Abrahamic faiths, until I actually read their holy books. Now I actively detest them.
Seriously. I know very few radfems who weren't trans allies at one point or another.
What I find absolutely hilarious is that these people don't realize that most of us used to blindly follow that ideology until we actually DID educate ourselves lmfao