"Of course, if this is the definition you're using, then you'd be hard pressed to say that intelligent design is not also religion."
Thank you for admitting that evolution is just as much a religion as the naturalists claim is ID.
And that ID is just as 'scientific' as evolution.
And that ID is just as 'scientific' as evolution.
Now, I have not admitted anything like this. Oh, no.
Let's once again visit the American Heritage Dictionary. They define 'scientific' as an adjective meaning "Of, relating to, or employing the methodology of science"
The core of intelligent design ideology - our origin is best explained by divine intervention - cannot be observed, much less tested. As Kitzmiller v. Dover demonstrated, for intelligent design to be considered 'scientific,' the scientific method would have to be expanded to include the supernatural. There's a reason why no one has claimed James Randi's million dollars; supernatural phenomena disappears in the lab.
Whether you believe in intelligent design or not is none of my business. But, if it can't be observed or tested, it's not scientific.