Why was the hatred against blacks so strong?

Well, there are loads of reasons... Personally I don't understand any of those... Black people are just different, and that might scare people... Things in history, make young Caucasians hate them, because history says Black people were used as slaves, because they are ''not as good as white people''.. Which is complete bull.... They are just people like us.. You wouldn't hate a person with a tan, would you...? Why then hate black people...? The hatred isn't necessarily because Blacks differ from Whites. It's culture of hatred that was created to belittle Black people and make sure that Whites dominated and kept anyone who's non-White down