Set aside whether it's true and ask a narrower question: can creationism or intelligent design function as science? I don't see how. Neither has explanatory power, and neither is falsifiable — there's no result that could ever count against it. And the usual move, poking holes in evolution, doesn't help, because disproving one theory doesn't prove your preferred alternative. That's a false choice. If evolution were somehow overturned tomorrow, the winner could just as easily be some third explanation no one has thought of yet.
There's also the matter of how science moves. It's cumulative, and supplanted theories don't come back. We're not returning to a flat Earth, or to the Sun orbiting us — and by the same logic we're not returning to special creation now that we have evolution. Evolution earns its place by explaining things creationism leaves untouched: why species are alike in some ways and different in others, arranged in exactly the nested pattern that common descent predicts.
What really sells it, though, isn't any single fossil. It's the convergence. Take the trouble to actually study physics, chemistry, biology, geology, and anthropology, and you find they all point at the same history of the same physical world — one that is constantly changing, cumulatively, everything built on what came before. You don't have to take any one field's word for it. They corroborate each other, and a static, recently-assembled universe simply isn't what any of them describe.