I don't think it is straight forward at all. There is the hate/fear thing which is very true but there are also the political manipulators who try to steer that masses from the real issues by blaming someone else. There is also the justification of past slavery and injustice going on (they are lower than us - it's ok for us to treat them badly) and blatant sensationalism by the gutter press. If I had all the answers I'd be a rich man and the world would be a better place but, as someone already said, eductaion must be a big part of it.

Cheers

Dave