Your sense of moral superiority is all you need to express yourself and get that self gratified superior feeling, and the whole reason you are as you are. The notion that two parents may have arrived at a different moral conclusion than you have, despite the fact that they are the parents and according to conservatives, should always have that right, and despite the fact that they know much more about the context in which they arrived at the actions they take, having lived them, we are given to believe the blow hard opinion of a no nothing like yourself who has a mechanically generated opinionshould carry weight. All I see is your asshole showing.
I think the concern lies in the question about whether or not the parents' moral conclusion is in fact moral.
I have a very difficult time believing that anyone anywhere in the world has a strong enough understanding of gender issues to know for sure that the decision the parents made - or any person in any kind of gender questioning scenario could make - is right or wrong. We - all of us - don't have enough experience with this sort of thing to know for sure.
Given this, it is impossible to say their conclusion is the correct one in the sense that there is an absolute correct answer. There probably isn't one.