They were generally opposed to the ratification of the Constitution because they feared the government would become tyrannical.
The reason that the U.S economy change in the 1980s is because of Reagan's economic policy. In early 1980s, Reagan imposed various economic tax cut for the people , thinking that it would be good, but the government faced various financial problems instead and America went to recession in 1982
By saying that "“The day of conquest and aggrandizement is gone by" Wilson is saying that it is time for a new world order, in which territorial conquest isn't the norm. Unfortunately he was proved wrong.
That statement is true
A country could be categorized as a sovereign power if its government has a total control over their citizen. Such as what they have in North Korea
A country where the citizens have the right to directly vote their own leader can't be in any way categorized as a sovereign power