From a UK perspective I'd say Christian with a growing Atheist demographic. But still a Christian global identity like the UK.
We have NEVER not had a Christian president. It's sad, yet true.
Based upon Christian principles.
It was founded on Christianity. I think all people should respect each others religion.
A lot of the citizens seem to be Christian, especially in the southern states.
I think most of the people in USA are Christians, iam not sure.
Technically no, the USA is secular. But in reality it is a Christian nation.
If mexicans stop coming yes
Christianized. It's just a part of the world. And marginally Christianized these days.
Some of the founders where traditions Christians. Others were publicly NOT CHRISTIAN--but Deists instead. Thomas Jefferson, for example, actually criticized the Bible and even alleged it could have been written by Satan. However, he did believe in a God but one that he frequently had to elaborate on. (Deism is the belief that nature and God are synonymous.)