You reckon? Because I feel I'm losing count. Was it Thermal who said that he appreciated women's desire to have women-only spaces, and indeed his favoured solution is to have women-only spaces plus spaces open to absolutely anyone, but also Thermal who insists that transwomen are women and I'm being mean to "my own people" if I don't want that particular sort of "woman" in women-only spaces, but also Thermal who said that in order to be a transwoman no man has to change anything about his appearance or indeed meet any minimum external criteria at all?
Because if you put all that together it looks awfully like self-ID to me. If it was only Thermal saying that if his spidey-sense divines that a man has the right feelz between his ears he'd use his preferred pronouns and open doors for him, I don't see where the problem would arise. We can all surely use our own judgement as to whose pronoun demands we choose to honour, that isn't an issue.
I know, and that's why I'm trying to walk through it step by step.
What I can piece together doesn't fit with my own views, nor with what I know of yours, but I think I can see where Thermal's coming from.
Basically, anyone can *identify* as whatever they want - it's essentially jus their own perception of themselves. That means that they can dress up or down, ball gown or dungarees, and it makes no difference at all to how they *self-identify*. To that extent, no amount of transition is required. And generally speaking, Thermal is happy to go along with however someone identifies themselves to them, and to make an inference about how Thermal believes any person is likely to identify. So if they see a male-shaped person in a dress, they'll simply assume they're probably trans, and Thermal will interact with them as if they were a female socially; similarly if they see a female-shaped person with a beard, they'll assume they're trans and interact with them as if they were male.
But that seems to only extend to how Thermal interacts with them in open public spaces, and what Thermal believes common courtesy should be. It doesn't extend to intimate spaces, which Thermal has said several times should remain sex-segregated. If the world were perfect and there were no bad apples out there, then sex-segregation as a whole wouldn't be necessary, but that's fantasy and we need to take reality into consider as policy.
I do note that Thermal bristles when they infer that a group of people is being maligned in total based on what they believe is a small number of bad actors. So for the moment at least, Thermal is working from the assumption that most transgender identified people are genuine in their belief about themselves and intend no harm - in short, that most transgender identified males genuinely think of themselves as females in the same way that Thermal thinks females think of ourselves. You and I may not agree, but that seems to be where they're starting from.
That's my high level synopsis of Thermal's view. If it's materially incorrect, they can add their own commentary.