Nor can you falsify an arbitrary process that is formulated solely on the basis of the past.
I have given you several predictions of the current theory of evolution. If any of these turns out to be untrue, then it is false. Note that this is not the same thing as saying that the fact that these predictions are true implies that the theory is true. Evolution will never be proven. But, then again, neither will any other theory or law in science. This is how science works. Ideas (such as evolution) are formulated. Predictions are made from these ideas as to what will be observed under given conditions. Observations are made to attempt to confirm these predictions. If the predictions are shown false, the idea is abandoned. If many predictions are confirmed, then the idea becomes a theory (or law, depending on whether it is an explanation or a description of observations). There is never any proof of it, however. If you don't like this, then stay away from studying science. However, whatever you like or dislike, evolution is a scientific theory and creationism is not. Therefore, science classes should teach evolution and not creationism. (Creationism could and probably should be taught in other settings, however.)