It could happen. The public schools in my home town were disaccredited -- the main reason I was sent to a private school.
California universities have a list of textbooks that are not approved for credit. You might get admitted to the university, but have to take a remedial course to make up for a high school class taught from a creationist text.
At any rate, textbooks having creationist materials will be banned by the courts, and I don't think any reputable publisher will risk the humiliation. There could even be a backlash in which publishers use "banned in Texas" as a selling point.
...creationist materials will be banned by the courts...
Josef Goebbels would be so proud!
yup...science enforced by the courts...typical liberalism.