Not proven. Heavily supported by current evidence. As we obtain new evidence, one theory may become more likely than the other two and even be accepted as fact - just as the theory of gravity and Darwin's theory of evolution were. At one point LaMarck's theory and Darwin's were equally viable based on contemporary evidence; as more evidence was gathered, Darwin's theory won out. That's how science works.So physics has three theories that are proven but conflict with each other.
And we have no empirical evidence for God, and plenty for the alternatives; God is a weak and improbable theory at this point, God is dead. In addition God is logically impossible; no scientific theory outright defies logic.