It is possible. Never underestimate the hate many U.S. citizens have for others their ancestors have deemed less important (start with all women) and the willingness they have to hold the nation back not to see other people catch up and excel. The U.S. has held many populations at developing-country position for DECADES ... it may well be that the price for that will now have to be paid by the whole nation.
RE: The USA on Its Way to Becoming a Developing Country?