If one of my children did that and I had the means to do it I’d immediately pack up the whole family and move as far away as I could get. Something or someone in the local area is influencing this nuttery and the daughter needs to be gotten out of that environment as soon as possible to try and get her head screwed on right. It’s no different than having a child that’s dabbling with drugs and hanging out with a bunch of druggie losers, yank them out of it ASAP and get them into a better environment.
“Something or someone in the local area is influencing this nuttery...”
That is part of it as we see clusters (mostly girls) of the trans-cult. But it is primarily IMHO from internet influence where everything is make believe, you can be whomever you want to be and get supported for it.