The "truth" isn't in the ruling. The "truth" is that evolution is real, and is how man came to be. Now you can read that into your Bible if you want, as the Catholics have done, and have no conflict between reality and your faith. Or, you can decide to ignore the reality of evolution and believe a fairy tale as written in Genesis.
But if some fundamentalist Christians continue to push for religion in science class, the fight will escalate, and I guarantee Christianity will lose. Again. Just like every other time they take on science.
And the whole great exercise will be a huge waste of time, money, and political capital while babies continue to be aborted, and cultural waste continues.
The only people who will gain out of this are the Democrats, whom I'm sure are salivating over this mess conservatives have gotten themselves into.