Whenever the government or the media announces another “designated enemy” of the US, the vast majority of the US population just goes right along with the program and starts hating the new designated enemy. Polls usually show ~70-75% of the population starts opposing that nation happens to be, and around that same number starts calling that nation a threat to the US.
Granted peer pressure is involved in a lot of this. If you support the designated enemies of the US like I do, there are very serious repercussions including ostracism at the very least.
If there is a war going on, no matter how retarded, insane or evil the US is in fighting the war, you have to be a good German and “support the troops” which means support the stupid war effort. To not do so not only leads to social ostracism but also to serious anger and threats of violence.
Most people just want to go along. If the price of opposing US foreign policy means social ostracism or opposing a war means threats or getting punched, most people are not going to do it. Who wants to be a social reject or get hit? Only people like me who are socially ostracized by default and don’t care if they get ostracized even further are going to go out on a limb like that. When it comes to supporting US foreign policy, Americans are surely a nation of sheep. Ignorant sheep.