You can agree or disagree with inmates having a right to medical care? That would require going to SCOTUS, at the very least. This right is well-established in the US.

One can agree or disagree on the question of whether transgender care is medical care, but I think the sensible position for any political party (on virtually any such question) is to defer to the scientists and medical experts who spend all day working on this stuff.

AFAIK, the then-current science said that this was one of the only effective treatments for gender dysphoria, and under our Constitution inmates can't be denied medical care, even if it gives somebody the ick or would be politically inconvenient at the next election cycle.

Yes, politicians can agree or disagree with policy. That is their job. E.g., “here is a good policy we don’t have which we should enact,” and “here is a bad policy we should get rid of.”

I’m not saying I agree or disagree with this policy but the point of politicians is to advance policy one way or the other which requires agreeing/disagreeing.