The Starbucks restrooms are single-occupancy. Doesn’t matter who uses which, no point in segregating.
Geeeez you really missed it on this. A gender neutral or non-specific gender restroom is discriminatory because people who are not gender neutral or non-gendered are forced to go against their identity. A transgendered shmale should be able to affirm their chosen identity by using a restroom that has people of that biological identity who affirm themselves of that identity.
The battle is not about discrimination it is about affirmation. If you are not affirming then your are discriminating.