One of the most fascinating aspects of popular interpretation of American History, especially among the Christian nation believers, is the assumption that everything started fresh, that American history started when we got here and is not connected to anything that happened before. This leads to a dangerously simplistic and naive perspective that ignores and denies previous social reality.
Like many, I was taught that the Puritans left England, then Holland, because they were persecuted for their religion. Actually, while they were suppressed in England, that could hardly be called "persecution"; and they left Holland because they saw their children acculturating and did not like that. And the settlers who made Virginia a success - not the original incompetents - were refugees from the English Civil War, in other word, the losers in that conflict.
We did not start fresh.