The recognition of such a cause may provide certain things, but this recognition is a faith based recognition, which I do believe you mentioned in a prior post, so you are aware of that.
Yes, it is based on faith, but faith isn't arbitrary...I don't make stuff up and call it "faith". God is faith-based in the sense of believing he exists without having to see him...the evidence of his existence being what we see and his "creative power" in the organization of the material Universe which makes life possible.
You also mentioned that such a recognition shouldn't be in a science class since science, by its nature, can't deal with things that are undetectable unless they can be relevant in some indirect way where science suggests that they should be there, something like the Higgs Boson.
I cannot comment on the Higgs since I haven't looked into it really at all, but I am more along the lines that science isn't sole arbiter of what's real and what's not.
God has to be immaterial, because if he isn't, he cannot bring forth something he relies on for his own existence. I think the Universe had a beginning, and who/whatever began it, has to exist outside of what's required for the Universe to exist.
I don't see anything wrong at all with schools "teaching" or offering a class on intelligent design. I think if people want that then they should do it, but it can be its own class where people can speculate all they want about the subject in a structured way and the class can be like a philosophy/science-ish class or something. I'm sure others will disagree, but if the class is offered in a stand alone flavor then you can take it or not but it shouldn't be mixed in with dedicated science class and shouldn't be incorporated into science texts since it is not based on objective evidence.
Why can't it just be included in religious studies?
I agree, but since we're hard-wired to believe in a...shall I say "Greater Good", its more than speculation, especially since the 'God spot' has been disproven...I think we have legitimate reason to believe in a God of some sort.
Evidence shows that man has been worshipping things since the very beginning of man...so there is what I deem "strong circumstantial evidence" of a God.