In other words, you do not really wish to leave the decision as to what will be taught in science class up to the individual teacher.
Would you wish to leave the decision as to what will be taught in any class the individual teacher?
in any class the individual teacher? = in any class up to the individual teacher?
Generally, no. But then I don't post statements claiming that I am defending their right to do so against those who would attack it.
The issue is one of who will decide what teachers will be allowed to teach. Few people would be in favor of complete freedom for individual teachers, yet some of them are willing to inaccurately claim they are defending such a right, when it supports a status quo of which they approve.