It is not just in the US, you will see this kind of cultural social engineering in most Western-Anglo societies from Canada to the UK and OZ. There are just slight variations with almost all done incrementally. Racism is also on the rise, more so in the US but it is possibly to circumvent the larger class warfare which underlies, the growing wealth disparity not too mention to obscure and real dialogue or discourse concerning neoconservative (PNAC) foreign policy. Scandinavian countries are also becoming culturally unstable to a certain degree,especially with radical feminism and cultural self hate dictating policy. There is actually enough literature on this subject.