It's not that evolutionary theory shouldn't be taught in school. It's not that I personally didn't talk to my kids about evolutionary theory and still talk to them about it in times. It's not that I take the Biblical story of creation literally and it's not that I haven't told my kids that I don't think it should be taken literally.
It's just the narrow question, as Pwns said, of whether or not having a large percentage of the population taking the Biblical story of creation literally is going to cause the United States to suffer with respect to its competitive position. It's not. Not believing in evolution is not, say, going to impede some brilliant person's ability to engage in genetic engineering research.
BTW I don't think it's comparable to the question of teaching math in general and algebra in particular. I guess it's possible that one could get a biology degree then end up in a professional capacity that never calls for the use of math. But if you end up in some capacity where you're doing something like managing fisheries or wildlife populations you're going to need it. And you're probably going to need to apply algebra in particular at times. You're going to have to be able "solve for X."
It's different with evolution I think. I don't think there are any situations where, in order to solve a practical problem, you have to believe that the process of evolution is what led to what you see before you. You just have to know about what you see before you. You may have to understand things about how all living things have genetic material in common, etc. But you don't have to accept the idea that evolution as described by the overall theory of evolution is the reason for that. Failing to accept that idea is not going to impede your ability to function like not being able to express yourself effectively in writing or not having some reasonable ability to use mathetmatics will.
I guess one could say that if you are a high school biology teacher or something and you don't believe the overall theory that could cause problems. I think that's the argument made in this article:
http://www.nytimes.com/2011/02/08/scien ... onism.html" onclick="window.open(this.href);return false;
But I don't think it necessarily has to be a problem. I've written before that when I took my evolution course in college the instructor (who was also my major professor) started off the first day of the course by saying that it is a theory and we did not have to accept it. We just had to understand it and be able to answer questions about it on tests, etc. BTW, I'm pretty sure he did/does (if he's still alive) accept the theory. He did not come off as the religous type. Quite the opposite in fact. I think he just did that to put people at ease and I think it worked.