"It is a complicated issue. It is truly a complicated issue, with a wide range of views, truly a wide range of views," Jean-Pierre said. "There is no 'yes or no' answer to this, it is complicated. There is a rule that the Department of Education [DOE] has put forward, and we're going to let that process move forward, and again, we want to make sure that while we establish guardrails with this rule, we also prevent discrimination, as well, against transgender kids. But again, a complicated issue with a wide range of views, and we respect that."
"Absolutely no reason for the Biden admin to do this," New York Representative Alexandria Ocasio-Cortez wrote. "It is indefensible and embarrassing. The admin can still walk this back, and they should. It's a disgrace."
"Honestly, this move by Biden to push a rule on trans kids in sports is not only a backwards betrayal, it [forces] us to have to spend our time dealing with god d*** sports instead of criminal bans on our healthcare," Alejandra Caraballo, a civil rights attorney and LGBTQ+ advocate, wrote. "He could have just done nothing. This is legitimizing transphobia."
The mOsT PrOgReSsIvE Administration in History™ 
"A complicated issue with a wide range of views, and we respect that" Fuck off out of here with that "centrist" nonsense. There's nothing complicated about it, and it's not an issue unless you want to turn it into one and want to appeal to people's emotions like Republicans are doing. It was only a matter of time before they'd start throwing trans people under the bus. I guess with the coming elections it's as good a time as ever.
Found a summary of a 2015 John Hopkins study.
It doesn't seem like there's a good central source on numbers like this. John Hopkins is a respected medical institution and even they're saying "estimates vary widely" and "It's believed." I think part of it is this isn't recorded in census data and perhaps most trans people who get HRT or GRS are kinda private about it? No idea, but it's still so absurd to me that reactionaries have decided trans people are their mortal enemy now. Trans people are incredibly rare and they're much poorer and more vulnerable than cis people.
That's srs which only like 1-2 percent of trans people get/are able to get
Maybe 1-2% of Amerikan trans people, where you have to pay out of pocket for a surgery that somehow costs four times as much as you'd pay in Europe.
Any data from 2015 is also going to be depressed because self-identification has shot up since then