No theory is proven. Evolution itself is an observed process. Darwin noted the flaws and then addressed them later in the same book.
"No, ID is not a scientific theory, but then evolution is only a theory, not a fact, and should be taught as such."
Yes, the theory of evolution is only a theory. A scientific theory the meaning of which, you show no knowledge.
Are you saying no scientific theory has ever been proven ? The scientific method depends on verifiable results, thus, the proof.
Your post is incoherent.