Actually, multiple studies have shown that yes, while some did get richer in the USA, the cost of globalization - worldwide - was mainly born by the middle class. People in poverty received governmental assistance.
And as someone who is in India frequently, the idea that newfound wealth was shared as a deliberate policy mechanism with lower classes is somewhat ... discredited.
I believe in globalization - but the US government should have done a better job helping people with it's impacts, and the developed world should stop pretending that there was no cost to others to make it happen.