Once upon a time anti-Americanism was attributed to envy. Americans claimed that other nations were jealous of their resources, wealth, power and success. But that was between states. The common people were not concerned with what the U.S. had and what it was doing.
Today, the situation is different. In the internet age people across the world know all about U.S. activities in various fields, -from global warming, unwinnable wars, bullying its allies, to its blatant disregard for international law and ethical behavior. Others, as in Afghanistan and Iraq, have been direct victims of U.S. brutalities. Therefore, whereas the former dislike America, the latter hate it intensely. For example, even though America and Britain are hitched in a special relationship, yet, when George Bush visited U.K. there was such a wave of angry protest that he had to travel almost in a capsule to meet the Queen at Buckingham Palace.
Even in America’s next door neighbor, Canada, Carolyn Parrish, a member of the Parliament for the ruling party once spoke on television saying: “Damn Americans. I hate those bastards.” (Nicolas D. Kristof, Losses before bullets fly; New York Times, March 7, 2003)