And then the GOP will still lose because then the Dems will be the party of the other 75%.
As minorities become the face of the Democratic party, whites will defect en masse. Once a pain threshold is reached, the 90% shift in the white vote to the GOP may occur overnight, in political terms. Think of all the white no-show or low-show jobs (Pelosi, Reid, Trumka) in government, unionized industries and charitable foundations and endowments being monopolized by blacks or Hispanics all down the line. Think of disparate impact lawsuits being filed against the current reality of all-white Hollywood productions, charitable foundations and endowments and other traditionally liberal white sectors of the economy, and racial quotas imposed that shut out large numbers of highly-competent and -productive white liberals. Why would a white liberal vote for the Democratic party ever again?