In many ways, the EU resembles a military alliance on the march. Jan Zielonka, a professor of European politics at Oxford, calls the EU a "postmodern empire," filling the vacuum created by the fall of the Soviet Union, using "checkbooks rather than swords as leverage." During the Clinton administration, the EU -- along with NATO -- pushed eastward, creating what Zbigniew Brzezinski called "the Eurasian bridgehead for American power and the potential springboard for the democratic system's expansion into Eurasia."
The Obama administration strongly supports the UK remaining in the EU.
But the EU has very little to do with "democracy," as the recent Greek crisis demonstrated. In a confrontation between the then newly elected Greek Finance Minister Yanis Varoufakis and German Finance Minister Wolfgang Schauble, the latter refused to negotiate over the austerity program that had cratered Greece's economy. "I'm not discussing the program," said Schauble, "This was accepted by the previous [Greek] government and we can't possibly let an election change anything."
In short, the Troika -- an unelected body -- makes all economic decisions and is unwilling to consider any other approach but that of the mythical Swabian housewife. It isn't democracy moving east, but the Bundesbank, and a species of capitalism that is unmoved by unemployment, poverty and widespread misery.
So is the Brexit a challenge to the growing might of capital and an implicit critique of the EU's dearth of democracy? Nothing's that simple.
First, the loudest critics of the EU are people one needs a very long spoon to sup with: Marine Le Pen's racist National Front, Britain's xenophobic United Kingdom Independence Party, Hungary's thuggish Jobbik, Greece's openly Nazi Golden Dawn, and Italy's odious Northern League. Hatred of immigrants and Islamophobia are the glue that binds these parties, which are active and growing throughout the EU.
Indeed, some on the British left have suggested voting against a Brexit precisely because the most vocal opposition to the EU comes from the most reactionary elements in the UK. The British Conservative Party is deeply split on the issue, with its most rightwing and anti-immigrant members favoring getting out.
The left is also filled with crosscurrents. While some argue for getting out because they see the EU as an undemocratic vehicle for the expansion of international capital, others are critical, but advocate staying in. British Labour Party leader Jeremy Corbyn -- hardly a friend to international capital -- opposes the Brexit.