Betts did talk about the "not true trans theory" and made it clear they believed only those with true gender dysphoria are truly trans, then by extension males with dysphoria are truly women because they have "women's brains". Which puts Esther against other Transactivists who don't believe gender dysphoria is a requirement to being trans. Esther openly admitted some people who say they are trans are not actually trans.
Esther does not have the insight, yet, to see how a man saying they are trans but are basically a cross dressers or just making it up, is no different to a man with genuine gender dysphoria in any meaningful way.
Betts believes that if your mind convinces you that you really want to be a woman and the thought of being a man causes you great discomfort than this means you are a woman, because of your lady brain.
It was interesting for me to listen at length to what I usually only see as sound bites on Twitter or random comments BTL. How deeply these people really believe this stuff. I feel great sympathy for Esther. I don't think mocking them is the way forward. I genuinely feel they are on a journey to critical thinking and I'd like them to be helped, not mocked.