I wouldn't say evil, its just their believe that only they should rule, and if China take over then they will destroy the world hence they have to contain the China or Russia, the bogyman American govt scare its people, it was Russians in cold war, Muslims in war on terror and now Iran/Shia/Sunni axis, and later on it will China. So they scare their own people to a point where they start hating a whole country and its population without even setting foot in that country or meeting its people, another issue is that Americans don't believe that anyone else can be right or on the right side of the history, means if you ask them they will say China is evil because it bullies its neighbors like Taiwan but will not ever accept that America bullies not only its neighbors but also 70-80% of the world, China is evil to them because they are building a port or naval station in Africa but wont bother them when you mention hundreds of American bases surrounding China, in short American concerns are only real concerns but their "Enemies" concerns is just some Hogwash.