Are We All Globalists Now?

The Trump Administration's decision to withdraw from the Paris climate accord, which drew immediate condemnation from both the business community and world leaders, underscores the notion that the tectonics of both culture and politics are shifting in unprecedented ways.
As the West moves toward an ever-increasing global outlook, the intellectual underpinnings of this transition must be carefully considered and the reactions to it sensibly measured. Is the new political paradigm one of globalism versus nationalism? Has this new paradigm replaced the traditional right-left divide? Are we all globalists now?