HI Shadow,
I think it is premature to state that creationism is just a religious dogma.
It depends on what you mean by "creationism".
The bulk of those who are referred to as creationists (in the context of this forum) are Christian biblical literalists. They are anti-evolution fundamentalists. If given a free reign to teach creationism in schools, these guys would be teaching stuff like;
- The Earth is about six thousand years old.
- The Theory of Evolution is an atheist conspiracy.
- Humans have no common ancestry with apes.
- The Noahic Flood was a real event.
- Adam and Eve were real people and our ancestors.
And so on.
This is a far cry from the kind of creationism that you're talking about, which suggests only that the first origins of life were intelligently guided. It's a very different beast. Call it "creationism-lite".
Creationism-lite cannot, at present, be disproved. In all probability, it will never be disproved, since we will almost certainly never now the exact circumstances in which life first arose. It joins the ranks of an infinite number of equally unfalsifiable ideas. All we can say at present is that creationism-lite is a very weak hypothesis, given that not a shred of positive evidence exists in its favour and that it makes a number of unsupported assumptions. Teaching creationism-lite in schools strikes me as pointless, since there is basically nothing to teach.
Full-on Christian fundamentalist creationism on the other hand, can be and has been disproved. It is a false doctrine. We know, with as high a degree of certainty as is imaginable, that there was no Flud, no Adam & Eve, no special creation. Teaching this kind of stuff in schools would be irresponsible, a form of lying to kids. The only reason why anyone would want to teach this errant codswallop is because certain highly vocal creationists want everyone else to share in their religious dementia. That is ethically reprehensible and, in the specific case of the USA, a breach of the Establish Clause.
Mutate and Survive
On two occasions I have been asked, — "Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" ... I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question. - Charles Babbage