If you can't see that Trump's tweet wasn't just about the "economics" of paying for medical procedures associated with Transition, you're missing a lot. The statement that TG will be unable to serve in the US military 'in any way' runs to a much deeper vein of orthodoxy which the devout VP Pence strongly believes in. This is more than money - which, incidentally, was over-inflated by DJT for effect when actually the real cost has been stated as peanuts, relatively.
I don't believe such voluntary procedures should be covered by TriCare etc, banning TG is an abhorrent statement. He'll pay for it in the polls and it just adds to his bucket of bat-sh*t crazy tweets.
Make TG pay for elective surgery, sure. Ban them? No. That's Hitler-esque, frankly.