Your reading of Thiel’s “who cares?” makes a very big leap in assuming his intent. Thiel probably does not mind if he if a trans person uses a bathroom of their choice, but he was probably not speaking to a neutral audience. The GOP’s runner up, Ted Cruz, ran hard supporting HB2, and despite his initial inclination against it Trump has seen no use in training his caustic eye against the North Carolina Republican establishment. Thiel was likely speaking to many people in favor of HB2, and leaving it as an open question was the coward’s way out. If you support trans rights, say you support trans rights.