But you still cant prove what gravity did in the past either. You can compile evidence based on the current state of matter. Maybe the evidence seems overwhelming, especially to those that come up with the theories. The theories become paradigms. But they still are theories.
This evolution is ‘fact’ stuff is promoted by atheists to show “God doesn't exist” and is used by creationists to rally the base(creationist) to sneak the Bible into science class using the hokey ID non-sense. It's the creationists vs the atheists and the rest of us are in the crossfire, to be shot by either side if caught.
But the most of us take the position that it's the best "theory", not fact, and that the overwhelming preponderance of evidence suggests that it's a good theory.
On the second part, I maintain that evolution does not prove that God doesn't exist - as nothing can prove that negative. It's entirely possible God created evolution as His means of "creation". And logical as well.
Most of GGG's rants against evolution seem to be against exactly the argument you postulated.