some trans folk can “stop being trans” as a result of their social environment or whatever

This is what evangelicals and terfs claim. But it’s not true. It’s why you cannot convert a trans person, or a gay person from what they are. It’s why the medical community has acknowledged that the best treatment is affirming care. If you believe being trans is a social issue you’re putting trans people into a position to lose their access to medical care.

You took this quote completely out of context and inverted the intended meaning to suit your argument. The statement Ada made was

And hell to take your gatekeeping ever further, even if you’re right, and some trans folk can “stop being trans” as a result of their social environment or whatever, they’re still trans until they’re not.