There is no transgender period. There is just people chopping up their bodies and taking drugs and hormones to try to be something they are not and never will be.
Adults can decide what to do with their bodies, e.g. piercings, mutilations, etc. So yes there is what society calls transgenders. They exist whether we accept them or not. That battle wasn’t even really fought and the left won that issue long ago when it comes to adults.
No national politician is going to push a federal law that bans adult transgenders from existing. If the states allow the procedures then they can do what they want.
However we can draw the line on children and prevail politically and defend the rights of parents to not have their children brainwashed.
If federal dollars go to state schools then we can insist those monies are not spent on leftist indoctrination. So far our side hasn’t been willing to do anything on that.
More generally we can insist that everyone should be treated the same with no special rights for any race or gender. Those positions are fairly easy to defend logically and politically if Republicans were not cowards.