The question of why they hate America is a good one. I can look at lots of left-wingers and often can give you an answer. We have many, that don't care about anything except getting what they can from the government. We have many that are in a war with hardworking successful people who they are envious and jealous of. They feel they are mistreated by the world because some people are lucky and they are not. But the big reason is that they are ignorant of why America has been the most successful Republic/Democracy in world history because of our Constitution.
They do not know that hard work and good decisions lead to success, in most cases, they think successful people are just lucky!