No it hasn't, you have. It is just accepted that evolution is the best scientific explanation so far,"
If there is no proof for it then it is not science, it is a belief. Your continued insistence that it is science in the absence of any proof shows that the claims of evolution are totally bogus and that it does not belong in the public schools but its own church.
Item 2 in the creationist playbook: redefine science completely away from accepted definition when it turns out evolution is scientific and creationism isn't.