We have many many groups of different backgrounds in a wealthy environment. More then any other nation in the world. There are many reasons people of all of those groups may say things about people of other groups. Two reasons like pettiness and jealousies can make groups frustrations with others expand from a normal voice in concern to talking loud through a megaphone at its highest setting denoting near violence. Whether one group has a legitimate gripe or another group feel it is wronged would be catalysts.If that is true it would be because we are the most diverse nation on the planet that has money. There can be many reasons but pettiness and jealousies of each other inflames any cultural ways of any groups or individuals.In the United States, white people (and all other 'groups' of people - sorry leftists) talk about race all the damn time. You'd be hard pressed to find a country where people (of all 'races' - sorry leftists) talk about it more.
Once again, in English?