You assume His people all reside here and that the world consists of the US. It does not. God considers hearts, not borders.
But Jimmy Carter claims he believes too, where I see more his deeds facilitating evil.
Deuteronomy and, I think, Malachi both contain verses declaring God's accessability even to pagan nations, so long as they keep to the Moral (Noachide) Law.
But Israel is chosen of God to carry ethical monotheism into the world. And America is chosen of God to so carry into, and hence promote goodness and freedom in the world...both nations as the greatest conveyers of those ideals...God's gift to the world.
Yes. I believe that.