I theorize that the fragile straights aren't actually straight. Which I assume is what the developer is poking fun at with the quotation marks.
Our social default is still to assume that most people are straight. It doesn't make sense for a straight person to have a driving need to prove that they are straight ... unless they think someone would have a good reason to put them into a "non-straight" category.
As a teacher, I have a really strong aversion to framing this as a simple battle between states.
What you're talking about may well come to pass, but in reality what it means is that an entire generation of children in poor states -- through no fault of their own, but solely because of the geography of their birth -- will be woefully undereducated and therefore not competitive in the university admissions process or the job market.
Whatever face-feasting-leopard karma we think the adults who voted for Republicans might deserve, their children should have the right to a proper education rather than be saddled with a legacy of poverty and ignorance. And in your scenario it's apparently going to be up to the blue states to care enough about these kids to help ensure their rights.