Why do people hate?

What the hell are you doing in this country?” was the last word that-Omar ,45 year old black man heard before being kicked in the stomach and falling to the ground at the Mariatoget underground train station south of stockholm by Oscar , the 39 year old nazi .He became unconscious as he was kicked once more in the head ,striking his head against the  stone floor when he tried to get It was the June 12 2008 and Omar had just finished watching a football match at Viking bar and on his way to catch a train home.At the same time,Oscar came out of a train and climbed up the escalator,making a Hitler salute with one hand pointing upwards,screaming ”seig heil” several times before he attacked Omar. It was an unprovoked attack just because of Omar's skin colour.”SMR(Svenska motståndsrorelsen-Swedish resistance movement) hates,hates,hates all black men,”said Oscar when he was arrested later by the police.” I dont remember anything because I was very drunk,” when Oscar was asked by the police if the attack had been motivated by his hatred of foreigners. Omar later said that he was shocked by the attack and is afraid to go out. The greatest number of hate crimes are recorded in the county of Stockholm.1,014 hate incidents were recorded in 2007 which wass an increase of 16 per cent compared with 2006. Hate crimes often involve unprovoked attacks on people either of their sexual orientation or skin colour. Hate crimes can vary from vandalisation of property to murder.The commonest motive is hatred of foreigners.