It's not so much weird as the consequence of the shits making those arguments largely being the exact same people, I think. Transfolk are being targeted with the exact same arguments that were aimed at LGB demographics because the fuckers doing it pretty much lost the fight on that part of the spectrum, and they're as unimaginative as they are hateful. When they target the next group the old crap just gets recycled.
The sad thing is it seems to be getting more traction, probably just because there's so many
fewer trans people. LGB are common enough interactions with them once they started coming out the closet
en masse became something you'd easily trip over. T (or enby, or whatever)... not nearly as much. Makes getting a picture of them as just another neighbor more difficult.
Make no mistake, though, prior to decades of dedicated effort by LGBT folks, the sentiment against LGB was every bit as hateful and bitter as it is against trans now. Again, it's largely the same fuckers behind it, the vitriol and violence they spit back then is exactly what they're spitting now, it was just against a less vulnerable target
E: It really does probably need to be mentioned again, but the reaction in the old days to stateside LGBT demographics was
also genocide, just with an even higher (so far, anyway) body count. The AIDs pandemic was very, very pointedly ignored back then
expressly so it would rip a black line of death through the LGBT population -- and it did. That wasn't done unknowingly, it was active malice directed against the gays, and to hell with whatever got caught as collateral. The way history rhymes is fucking depressing sometimes.