In the Story of Reality man does not rescue himself for his own glory. Instead, God rescues man for His glory. Every other story describes what man needs to do to fix himself and save him from whatever else is wrong with the world.

Our reasons for believing Jesus existed and also that He was who He claimed to be - the God who came down - are the same reasons for believing any fact of history: the documentation is substantial and it passes all the tests of historical reliability. Scholars - both liberal and conservative - overwhelming agree that Jesus of Nazareth was a man of history and the Gospels, on the main, tell His story accurately.

I want people to see that Christianity claims to be true in the deep sense, and if it isn't, then it solves nothing at all.

In matter-ism (materialism), there can be nothing wrong with the world since there is no right way for the world to be in the first place. Everything is just matter in motion and that's that. In Mind-ism (monism) there's a different route to the same problem. There cannot be a problem of evil, even in principle, since in Mind-ism even morality is maya; illusion. In neither story, then (if we're to be consistent with their principles), can the issue of evil be raised. But in real life the problem comes up all the time. That's the difficulty.

We want to be on the offensive without being offensive.

An alternate explanation is not a refutation.

God existed before He made anything else, and He Himself was never made. God is eternal.