why people hate ? just a thought to share

 because of a few discussions that i had  lately and a few news reports that i have been reading, (1 news report  from today)  i keep on wandering still why people hate other people? is it fear? is it wrong  education ?what?why people hate other people that they don't even know??hate brings only troubles but we all know that don't we?so why people are still hating other people?we have no time to hate