Aside from all of the other problems with this hideous new ground the left has chosen to trod, it's Achilles' heel is that they have no objective criteria by which to define who is "transgendered." They won't come up with any either, because to do so would be "discriminatory" in their warped world. They have painted themselves into a corner, and if the rest of us don't force the issue they will eventually get away with this, just like they do everything else by using propaganda and time to wear down public opposition and eventually cause most people to accept it.
The very same line of attack should also be applied to seeking racial set-asides and other "diversity"-driven advantages, by claiming to be black, Hispanic, or whatever because you "feel" that you are that race. They have zero defense for any of these arguments, because if they try to claim that only biological facts can be used to determine who is a certain race (which is a much less strictly-defined quality than gender), then it immediately destroys their claims about gender and "transgenderism."
Fauxohontas “feels” she has a bit of Native American lineage and who are we to question her “identity”??