Do you know the penalty for blasphemy? It's death, just as it always is whenever religion is threatened, especially the Abrahamic religions. Violence… - Aron Ra

Belief may be either rational, or assumed on faith. But in either case, it doesn’t matter how convinced you are; belief does not equal knowledge. The difference is that knowledge can always be tested for accuracy where mere beliefs often can not be. No matter how positively you think you know it, if you can’t show it, then you don’t know it, and you shouldn’t say that you do. Nor would you if you really cared about the truth. Knowledge is demonstrable, measurable. But faith is often a matter of pretending to know what you know you really don't know, and that no one even can know, and which you merely believe -often for no good reason at all.

A society run by reasonable, rational, educated, objective, skeptical people who know that actions work and prayer doesn’t –would tend to be atheist. We’ve already seen the world run by Christians. Whenever religion has had rule over law, the result has historically always been an automatic violation of human rights and an attack on factual education. So yeah, any Utopia would have to be humanist.

Creationists may refuse to acknowledge geologic time scales, and cannot admit that any new organism might be unable to interbreed with the stock from whence it came because their sacred fables say they were “created each after their own kind”. But of course they can’t say what a “kind’ is either, because it’s impossible to identify any point in taxonomy where everything that ever lived isn’t evidently related to everything else. So they largely ignore phylogenetics altogether. Creationists have to deny macroevolution for the same reason they have to deny transitional species, not because these combined realities can only indicate an animal ancestry, but because either one alone proves that such is at least possible, and creationists are not permitted to admit even that.