Nowadays, when two or more nations amalgamate their economic, political, and social systems they necessarily take the lowest common denominator of freedom rather than the highest. In fact, they must take something lower than the lowest: the union government will be more restrictive than the government of any of the nations which formed the union.
This will be true of any supra-national government that the United States might get into: the union will not extend American freedom to other nations; it will extend to all nations in the union the most restrictive controls of the most oppressive government which enters the union, and make even those controls worse than they were before the union was formed–because the American principle of federalism has been discarded by the "liberals" who manage our national affairs; and American federalism is the only political principle ever to exist in the history of the world that can make individual human freedom possible in a federation of states.
Hard core American communists know (and some admit) that any move toward American membership in any kind of supra-national government is a move toward the Soviet objective of a one-world socialist dictatorship; but all other American advocates of international union claim their schemes are intended to repeat and extend the marvelous achievement of 13 American states which, by forming a political union, created a free and powerful nation.
All United States advocates of any kind of world government point to the founding of America: 13 sovereign states, each one proud and nationalistic, all with special interests that were divergent from or in conflict with the interests of the others; yet, they managed to surrender enough sovereignty to join a federal union which gave the united strength of all, while retaining the individuality and freedom of each.
The 13 American states, in forming a federal union, did not take the lowest common denominator of freedom; they took the highest, and elevated that.
The American principle of federalism (indeed, the whole American constitutional system) grew out of the philosophical doctrine (or, rather, statement of faith) which Jefferson wrote into the Declaration of Independence:
"...all men are ... endowed by their Creator with certain inalienable rights..."
Men get their rights from God, not from government. Government, a man-made creature, has nothing except what it takes from God-created men. Government can give the people nothing that it has not first taken away from them. Hence, if man is to remain free, he must have a government which will play a very limited and negative role in his private affairs.
The United States is the only nation, ever, whose institutions and organic law were founded on this principle. The United Nations' Declaration of Human Rights; the Constitution of the Soviet Union; and the written and unwritten constitutions of every other nation in the world are all built on a political principle exactly opposite in meaning to the basic principle of Americanism. That is, the Constitution of the Soviet Union, and of every UN agency, and of all other nations, specify a large number of rights and privileges which citizens should have, if possible, and which government will grant them if government can, and if government thinks proper.