Hoo boy! That’s a lot to unpack there. Evolution does not preclude a god. God could simply have created the world in such a way that life would evolve on its own. As for coming about by chance, it is stated that given an infinite amount of monkeys, typewriters, and time, they could produce Shakespeare; are you certain that the same could not be true of a universe? The nonexistence of evolution would not prove the existence of a god, let alone God. Also, I’m certain you can observe evolution in a laboratory setting given the right organism to account for the length of generations.