I don't think so, either. The countries that dislike us the most (Germany, France, etc) have been becoming more Socialist for years. Their economies are in the tank. There is a growing gap between our prosperity and their lack of it. They blame us for it.
I hate to say it, but "it's the economy, stupid" is the answer to more than one question.
Could be. Though there was a far greater gap between their prosperity and ours in the decades following WWII than there is now. And it seems to me that that was a golden age for Americans to travel around the globe. Actually I'm not comfortable with using the word "hate" to describe how the rest of the world feels about us. If people hate us so much why would they move here in a second if they had a chance? Is there any American embassy in the entire world where there isn't a long waiting list of people trying to emigrate here? If people hate us, why do they love our music, our movies, our culture and our blue jeans?