If there was no evidence of intelligent design (DNA, laws of physics, etc.) and it was just blobs of matter floating around that would be a persuasive argument. But just like when I see a message written on the sand that says “bob loves mary” I don’t think it was randomly created by the waves, but rather a message created by an intelligent being.
But even if one is obtuse enough to dismiss all that, at best one can say we don’t know if there is a creator or if everything always existed. But one can’t claim like you did in the original response that there is no creator