What Europeans condemn as unilateralism is in fact traditional postwar internationalism. As Lockeans, Americans prefer it to transnationalism because it's democratic.
The quickest way to end unipolarity is to pursue unilateralism. An America that obeys international rules will strengthen its foundation of power and preserve its advantage.
What distinguishes "democratic globalism" --the target of Francis Fukuyama's attack-- from the author's own "democratic realism"? The second chooses its battles more carefully.
Historically, in both practical and theoretical debates about American foreign policy, the great divide has been between proponents of liberal internationalism--sometimes called Wilsonianism--and realism.