It is worth mentioning, I think, that the transgender bathroom issue is only the headliner of HB2; there is quite a bit of other stuff in the bill, and the other provisions are arguably more far-reaching and potentially impact rather larger numbers of people. Some of the other provisions might also be of even more dubious constitutionality as well.
FWIW, I have heard NO talk here in NC about the PGA being moved; the possible relocation of the NBA All-Star game was a discussion point almost immediately. I don't know if that is significant or not.