So name a few ID proponents that are not religiously motivated.
What do religious motivations have to do with the presence of organized matter that performs specific functions? Does one have to have a religious motivation to infer such things might be a product of intelligent design? Do religious motivations somehow change the facts?
What you are doing is mistaking a concurrence of ideas, namely organized matter, intelligent design, and religion, for motivations that have no bearing on the facts at large. It would be a mistake to attirubute the positions of evolutionists to communist motives even though the ideas may be amenable to one another; even though indeed there may be precide communist motives behind the explanation. What is also common in these debates is a conflation of facts vs. interpretation of the facts.
I have yet to know a scientist that does not operate with some kind of motive derived from his/her world view. They may deny it, but as with religion, denial does not change the facts.