[highball]

Religion is an ambiguous term. It even includes nontheists world views. So exactly what is a "religious motive?" How about a political motive, such as to accomodate a singificant religious group? t seems to me to be the real motive of the school board.

Even if your supposition is correct, is that really any better?

Do we really want scientific textbooks to be assigned based on their political value? Do we really want political considerations to shape the lessons?

[Doctor Stochastic]

Do we really want political considerations to shape the lessons?

That was the main thrust of the Marxists some 40 years ago. Politicize art, education, etc. Political Correctness means choosing art, science, cuisine, etc. only insofar as the choices advance political aims. (The Left and the Right are identical in their actions, differing only in their selected targets.)