The people of the State of Louisiana decided it is a limit on the free exercise part of it, if it is excluded as you would suggest.
What part of the Constitution provides for public schools? Aren't they run by LOCAL people, for the benefit of the LOCAL people. Do they not have a say in what they wish to teach to their children? Would you not say that to do otherwise, would be a LIMIT on Religion AND a LIMIT on FREE SPEECH. Do you consider your precious TOE so fragile that it cannot withstand RELIGIOUS scrutiny?
Would you like to take my guns, too?
That is exactly it. They wish to subject Scientific theories to “RELIGIOUS scrutiny” which is entirely inapplicable to Science, and an establishment of religion. May as well try to teach that Pi is 3, the earth is the center of the universe, and that the earth is only a few thousand years old.
Then who would dare call it “Science class” and not “Bible Studies” (and a rather rare interpretation of the Bible at that)?
If you don’t think they should teach Science at all and just teach the Bible instead why not just say so?