From my understanding they weren't saying you can't teach intelligent design. They were just saying that is sholdn't be taught in science class as a science, that it should be taught in religious education or philosophy class.
I discussed intelligent design at uni in PHILOSOPHY lectures and tutorials. It is crazy. I do agree that it is political, however my understanding is that it is the evangelical christians who want Darwinism outlawed.
Skybird said it well that Darwinism though it has flaws has supporting evidence better than the argument for intelligent design if you are going to get into the Scientific method of proof.
This is where Darwinism ergo Evolution is science based. A theory that is subject to interrogation and having facts available to support the theory and that can survive interrogation by peers.
Intelligent design hasn't been subjected to or able to undergo the scientific method as it relies on faith. IE it is a philosophical discussion. It is impossible to either prove or disprove the existence of god. That is what makes philosophy so much fun to debate.
However in the US the way it has been presented seems that ID was actually a pseudonym for creationism and used as an attempt to get it through the rules.
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