You're right; ID is used as a tool to get Christianity into government schools, and there are those who object.
No more than evolution is a tool to get atheism into schools, as you illustrated at #114.
Really, the question that should be asked is why Religion *cant* be taught in schools - not as dogma, but at least as philosophy and theology. The ignorance of some students in secularized schools to basic Christianity is sadly very real.
This thread alone has brought in Aristotle, Descartes, Einstein, Gandhi, Jesus ... just a few of the top 50 men of the history of ideas.
Rather than an "ID" trojan horse, how about 'a history of ideas', where the Christian philosophers get a crack at some exposure...
Is it *really* "unconstitutional" to tell students that Aristotle believed in a 'First Mover'? Is it really unconstitutional to have them read Aquinas or Saint Augustine? Why?