The estimated time when whites will no longer make up the majority of Americans has been pushed back eight years — to 2050 — because the recession and stricter immigration policies have slowed the flow of foreigners into the U.S.Sadly, this prediction, if true, will not necessarily beckon the end of racism in America. If anything, it might--absent other changes--make racism that much more egregious. At least when whites are in a majority, one might plausibly, if unapprovingly, that one reason for pro-white/anti-person of color racism is the "natural" result of whites being in the majority. But I suspect that whites becoming the minority would not erase white privilege. It might still be, even 40 years from now, easier to be white in terms of getting a job than it would be to be a person of color. (All other things being equal, of course: in some sectors, it is sometimes easier for women and persons of color to get hired, but the end result appears to be systemic marginalization of the non-white.)
Of course, demographic changes change things. And my view is one of pessimism.