This is incorrect to say the majority of Americans are Christians. Many are confusing simple "respond to this survey" answers as reality. For example, you ask the average American, "what are you, what do you identify as the most?" the huge majority will not say "Christian" as their first response. Only true practicing Christians respond so.
Most Americans rarely go to church, or other religious centers such as temples. It does not mean Americans are not "religious", actually the typical concept of many, many Americans is rather basic, that "God exists" and they "believe in a God". That is not the same as saying "Jesus is God".
If someone went around with a clipboard and said "mark your religion here", the person may mark "Christian" but that is only because, if they respond at all (many would take offense and be suspicious as to why someone needs to know), they just check something hoping they will make the person taking the survey happy. I know this sounds strange, but it is part of the "human nature" of many Americans. The person responding never goes to church but instead watches football on Sunday, or whatever. The person doesn't even know anything of Bible verse, nor cares to know, other than a few "Chapter x verse n" type stuff they heard used in the past as some sort of endorsement for their favorite NFL team (e.g. holding up a sign with the verse reference hoping their sign will be shown on Monday Night Football).
They actually are not a Christian at all, but for expediency they might check Christian because "I think my parents were" sort of thing. They just believe there is a God (or Gods) but "whatever".
So you may end up with a survey indicating most Americans are Christian, but in fact only a true minority are actually true practicing Christians, most Americans are actually no particular religion at all, or secular, or just "nothing".
A breakdown of which religion a group of US Senators belong to means nothing. It is just expediency in most cases here as well. They are not Christians, they are politicians. Lawyers. Many actually hate the minority Christians in America.
The rich are now being violently attacked, their houses broken into, stores looted and so on. Someone mentioned America itself is being targetted - yes, there is truth in that, I say America is being targetted with hate and hate crimes by many.
Now someone said a survey shows Americans do not see Muslims in a good light.
That is true.
It has nothing to do with these same Americans thinking "I am Christian, they are not". B.S.
They never think Christian anything. They don't like Muslims who want to blow up the shopping mall or subway. It is simple as that, and actually most Americans never even thought about Muslim anything until the terrorism started. But the Muslim extremists have gotten the attention of most Americans, now. They are looking at them now. And saying screw you.
So Christians are a minority in America. They are the most abused of minorities along with homosexuals. The rich are increasingly being targetted, but not to the extent.
I am a Hindu. I see the bigotry of those who have those who hate Christians, homosexuals and the rich. You have to let go of this hate.