"That number should be zero" listen to yourself, you hardly even know what you're saying, you're saying that there should be no murders at all, but that's just impossible, people have freedom, and unfortunately, some use it for evil, plus there is much much much more murders because of other reasons, so by your logic, everyone is extremely brave.
They are open about who they are in a place where they can be killed for it you say, open your eyes, anyone can be killed for anything, and they are much more often killed for literally any other reason, so that makes everyone's choices very brave because you could be killed because of it, no, that is a lie, being different isn't being brave, willingly sacrificing and willingly betting on something extremely dangerous is what makes people brave, it's the only things that make people brave, so they aren't brave unless they have done those things, and every trans person hasn't, some have, but most haven't