Yeah, but God made them evolve. He’s responsible for strong and weak nuclear forces, gravity, and electromagnetism.
ID-ers already know this, they just don’t explain it because you and I wouldn’t understand (since we were wrong about that stupid “round earth” theory, heliocentric planetary systems, and the germ theory of disease in lieu of miasmas or witchcraft).
Natural selection doesn’t select FOR it discriminates AGAINST.
Arches without spandrels would collapse (gravity being the natural selector). Arches with spandrels would survive. If they could breed, we would be swimming in spandrelled arches.
Any phenotype that wasn’t involved with spandrelism would be passed on regardless of its utility or lack thereof, if and until, it was selected against by a future selector.
God bless Darwin.