Textbooks and education standards are like The Octagon for the evolution debate. Everybody can be peaceful about opposing theories and proofs until somebody wants to tell my kids that their opinion is hard-and-fast truth.
This is why boards of education have to be really careful here. Extremists on both sides have bad ideas about how science education ought to answer the question, "How did we get here?"
In my opinion, the question of origin deserves special recognition, since it so often enters our minds and is still addressed best either by religious documents or scientific theories. It is so far from being answered!
...but here you have folks who want to end the discussion before it even begins by framing facts in terms of whichever side they have become convinced of. It's not good for young minds to have their deep questions stripped away by hardened debate veterans.