In fact there are still places teaching abstinence-only education and I'm pretty sure that trying to keep the existence of LGBTQ people from being mentioned is not a huge step forward.
Except the places that still teach that want abstinence-only education. That’s my point—the localism proposed by the grandparent poster is a good idea, but it requires everyone to chill out about how other communities choose to teach their kids. Everyone would be a lot happier if they weren’t having to look over their shoulder all the time wondering what the other side would try to foist in their kids. Having been in the receiving end of that in the 1990s I would have expected urban folks to understand that.