Madness. The entire enterprise of science is built upon people challenging each other's work and each other's theories. That's what scientists do. If something makes it into a high school text book, it's on solid ground.
These people will stop at nothing; they've been beaten back before, they'll be beaten back again.
One small quibble: Making it into a textbook does not mean it is on solid ground. My high school physics textbook taught string theory with the same confidence my biology book taught evolution even though string theory is still a contentious issue. Another example is what you read in some 1930's biology textbooks about differences between races.
Making it into the school books is no guarantor of truth.
