datan I think the understanding is quite clear, being post operative is the only ‘proof’ to the eye that you are a ‘genuine’ trans person as opposed to a man just wanting to get in a woman’s space.
But that's exactly what they are! A man who really, really wants to get into a woman's space.
The only difference, is the motivation. And you having empathy for it, or not.
I can have sympathy for a man with gender dysphoria. But I know it doesn't make him a woman.
What it does make him is someone who believes a woman is a stereotype.