I understand that some of the criticism comes from conservatives but the sentiment seems to extend far beyond thst. Of course, I understand it when it’s forced or when someone only does it to survive against their will. But if people genuinely want to do it, why do people hate on them?
I would actually say that it is “amoral” in that it isn’t in the realm of moral judgment in the first place.
I think “immoral” was the word you were looking for.