Okay, this already sounds dishonest on it's face, as it is counting a hormone treatment as a sex change operation.
There are legitimate non-transition reasons to prescribe puberty blockers.
So this whole thing sounds... kind of dubious to start with.
But let's take it at face value that 14,000 kids are getting Gender Affirming care.
300,000 teenagers identify as transgender in the US. So even if your numbers are true, it means less than 5% are getting any kind of treatment.
New data show that about 300,000 teenagers identify as transgender.
www.edweek.org