Charlie, the Sedom reference to homosexuality happens to be based in the Torah, not, lihavdil, Christendom; see various meforshim on the savages’ threats to Lot that they wanted Lot to send out the malachim because “viNeidia osam”. They wanted to have intercourse with his male guests, in case that wasn’t clear enough. That’s our Chazal.
But I wasn’t even referring to that. Rather, you can compare the legalization and “normalization” of this toeiva with the middos of sedom that Chazal have told us that Sedom possessed. Like, for example, how they stretched a person’s legs to extend all the way on the bed they prepared for him. Or how they would permanently “shorten” a person’s legs on the bed they prepared for him. All so that the bed would fit the guest. Obviously, that they brutally murdered the guest in doing so was irrelevant (or, rather, the whole point). Of course, the length of each bed was chosen specifically for this reason.
So, too, while those who have legislated and “normalized” this abomination *might* not have been as evil in intent as was Sedom, they are still severely short-changing the children by legislating and “normalizing” this abomination, all so that the bed would fit (the child’s “parents”).
I really prefer to avoid analogies, which are often imperfect to some extent, but I don’t see how else to possibly convey the point when simple logic had no effect.