Why Do Some People Fear the U.N.?UN

Why do some people fear the U.N.?UN?

A) They believe it might become a totalitarian world government, eroding state sovereignty and individual freedom.
B) They fear not the U.N.UN itself, but that we have become complacent with its existence, which will result in WWIII.
C) They believe that the U.N.UN will collapse like the League of Nations, and that we are unprepared for that eventuality.
D) They believe that the U.N.UN will become a nascent world government with the ability to solve security dilemmas and economic concerns around the world.