Perhaps I’m missing something but if I remember correctly the USA became a country in 1776.
I've heard this chestnut once before. It’s built off scant Bible verses mixed up in a blender. It’s like saying Bozo the Clown is the Anti-Christ. (I was going to post this parody but thought better.)
This mistaken belief stems from the fact that England and the US were very prosperous nations during the late 1800s because God looked favorably on us as Christians. God never promise Christians will be prosperous with earthly wealth, only that He will provide for our needs.
Besides, are God’s blessings for Jews or for Christians?