 However, despite these unifying forces, France today still remains marked by social class and by important regional differences in culture (cuisine, dialect/accent, local traditions) that many fear will be unable to withstand contemporary social forces (depopulation of the countryside, immigration, centralization, market forces and the world economy).In recent years, to fight the loss of regional diversity, many in France have promoted forms of multiculturalism and encouraged cultural enclaves ("communautarisme"), including reforms on the preservation of regional languages and the decentralization of certain government functions, but French multiculturalism has had a harder time of accepting, or of integrating into the collective identity, the large non-Christian and immigrant communities and groups that have come to France since the 1960s.The last 70 years has also seen French cultural identity "threatened" by global market forces and by American "cultural hegemony".