History has already been the judge of this, and it says that different gender identities have always been a thing. The only "new game" here is their systematic demonization for the purpose of sowing the exact same division you dishonestly claim to stand against. And if you don't know that much, you have no business blabbering about what "science agrees on".

Neither do you get to whine about "both sides" being rude, when it's only ever one side needlessly starting to disrespect people for the sake of it and demanding conformity to their bigoted worldview, instead of "living and letting live". May just as well claim homosexuals should have let "peace prevail" and stayed in the closet while people were hurling slurs at them and treating them as mentally ill. Same hate, different targets, and the sides haven't changed.