When looking at the evidence of feeding on large prey, you can see every size tooth from hatchling to adult in one spot. The babies may have been fed in the nest until they were full grown, like in eagles and hawks.
In my view, America has never had the opportunity to enter paradise. Europe enjoys the paradise it enjoys, in part because the United States provides the overall security that allows Europe to live in a system where military power is not a major issue.
My family and I reside on a non-working farm, although we have a couple of horses and the usual stuff like pigs, cows, and chickens. We really don't have an honest-to-goodness farm, more of a hobby farm.