https://en.m.wikipedia.org/wiki/False_equivalence

Furthermore, the assumption is that a criminal will bring weapons to a gun free zone regardless of what rules/laws are in place, which makes sense. If you're going to murder someone using a gun, I doubt a sign of a gun with a red circle and a slash through it is going to stop you. I don't think the same holds true for trans people. A law preventing them from entering an area may deter them from doing so, especially since the act they're going to perform is presumably legal.