The proponents of the Church of the Flying Spaghetti Monster argue, much as the Intelligent Design folks argue, that one theory is as good as another and we should leave it up to a mythical eighth-grader to decide the rules of the universe.
Here is an example of the FSM argument:
It seems strange that Evolution is singled out as “just a theory” when there are so many basic ideas in science that remain unproven, yet are still taught as fact. The objections to teaching Evolution have only illustrated this point further: Alternative theories must be taught in order to give our young students’ minds a broad foundation. The Intelligent Design proponents make a compelling, and totally legitimate, argument that if a theory has not been proven, then one suggested theory is just as good as another.
From A Little History of Religion by Richard Holloway:
If daring to know how nature worked was one of the impulses of the Enlightenment, another was disgust with centuries of religious violence. Superstition was bad enough. War was worse. The thinkers of the Enlightenment noticed how religions always disagreed with each other. Each believed it possessed the truth revealed by God and the others were wrong. And when it got control of a country it tried to make everyone march to its drumbeat. That was bad enough. It was worse if there were just two religions in a country competing against each other. They would be at each other’s throats all the time, as they had been in Europe since the Reformation. But if there were thirty religions they all seemed to live in peace!