The first recorded declaration of Human right is called the cyrus cylinder. Cyrus cylinder was written at 539 B.C which located in Persia. It consist of several fragments that write the basic Human Rights of the people, which became the first recorded declaration of human right<span />
Well, fear is created when there is a threat. WW2 Had just ended, so of course America did not want any other nation to become more powerful than them, for the idea that it would end up being like Germany. Americans also wanted to protect democracy, so communism was a major threat to the USA and it's beliefs. Naturally, America wanted to prove dominance to the USSR, thus the beginning of the cold war.
Answer:
I think they opposes it because of Political Reasons as they thought it would hurt them and bring them down.
American colonial settlement could expand westward