Personally, I don't consider learning about the existence of LGBT people and their historical contributions as "moral content." They're just facts of reality, plain and simple--but Republicans have had great success reducing the very existence of the LGBT community to a matter of personal perspective or of morality. Though at the same time, I still don't see this sort of education happening in elementary schools at anywhere near the level Republicans claim it does...and it doesn't need to, because once again, all they're doing is using "religious freedom" as a weapon against people and institutions they hate. It's become their all-purpose get out of jail free card in pushing their agenda on others and dismantling the civil rights of minorities, and it has been working out frighteningly well for them in this country. The entire "LGBT people are all groomers" narrative has proven to be an especially effective fearmongering tactic for uninformed American parents. Which unfortunately is to say far too many of them in this idiocracy of ours.
It's one thing for parents to have a voice, and another thing entirely for them to be the only voice, which is what the GOP is really after here. If parents get to decide everything their children learn on supposed "moral grounds" (and make no mistake, "literally everything they learn" is the conservatives' ultimate goal with pushing this "public school infringes on religious freedom" argument--they aren't simply going to stop with LGBT issues), I'm worried that they're not going to learn much of anything anymore, because apparently Mommy and Daddy know everything worth knowing in life and they alone are the supreme arbiters of all reality (well, and Trump/Musk, of course). Between the ongoing war on teachers, the SC taking cases like this, and the incoming administration's plan to abolish the Department of Education, there is a very clear, highly organized attempt to eradicate the US public education system in the next 4 years. I really don't think it can take much more of this RW assault, especially with so many teachers leaving.