There's many pages on this thread so I'm sure I might not be offering anything that hasn't been said.
I was very much against this whole thing when it started to really blow up in 2015, but that's because a friend of mine, formally known as Cosmo Wright, showed that it was more about transition. After her girlfriend broke up with her (as Cosmo) and the loss at the Nintendo World Championship, she was never the same. I think there are many cases where it's genuine mental illness that drives people to decide on this. I mean I suppose gender dysphoria could be considered a mental illness but like, it's deeper than that. Some people really just get all messed up and confused and then buy the stuff off the streets and have sketchy results. But I've seen many healthy transitions, to the point where you literally can't tell at all that they transitioned. That times time, patience and the right drugs and doses for it. Some people get compulsive and impatient and might take too many hormones.
I used to be a professional zelda speedrunner and flaked out at the height of my fame it because I found people were becoming way too weird and toxic. They're like penguins, they all start to act the same way, talk the same way, in this passive aggressive condescending tone that is like a disease. I was basically the only person setting world records who wouldn't treat people all weird, but then if I'd show up to a newbies channel, they'd freak out, and I hated that. I don't think anyone should be put on a pedestal for any reason, we're all just human beings.
That said, I've changed a lot since then and am very much in support of being transitioning or deciding they're non-binary. It's the latter that I'm still getting used to, because if someone is clearly a male or female it's difficult not to refer to them as such, but I do for those that are non-binary. Some of the developments in this movement have made me think more about taking on a more androgynous appearance. Eyeliner mainly, I guess. I'm always making sure my lashes look nice, I'm lucky to have long ones that also seem to grow back abnormally fast. I think it's some sort of condition where I have extra eyelashes.
The whole thing with sports is obviously problematic and, I genuinely don't really know what a solution would be. Have transgendered individuals compete with other transgenders? There's been several cases of male to female transitions where they still show much stronger athletic prowess. However, I believe in many cases one must have had to been on hormone therapy for enough time to significantly reduce their strength. Even then, some women are just strong as hell and could be a part of many male sports. I think women should be allowed to play baseball, for instance, and not have it be a whole separate thing or softball. I mean look at Babe Ruth, he did it on hot dogs, cigars, and beer. He could only really hit the ball. Lots of baseball guys are just in shit shape, there are plenty of women who could do really well in professional baseball, and I do think one day it may happen.