but now we see that it's a mainstream liberal position that children should be given sex change hormones and puberty blockers.
You don't seem to know very much about mainstream liberalism. I live in one of the most liberal states in the country and I've never heard anyone ever argue, in real life or online, in favor of forcing children to have sex changes.
Honest question: are you actually a Democrat, and if so, why? I've seen your posts about immigration, race, and now trans people; your views seem to be much more aligned with Trumpism and the GOP...
Where does he say anything about forcing? Activist Democrats frequently argue that these options should be available to children upon request. Skepticism is intolerance.