"Elected populist leaders have clearly signalled their intentions: to undermine liberal democratic institutions."

This is a self-serving conceit. In fact, I would argue that it is neoliberal economics that is undermining liberal democratic institutions. 

Turbo charged by the fall of the Berlin wall and, apparently, indemnified by Fukuyama's pronouncement of the end of history, capitalism has now set its sights on its traditional enemy: democracy. 

Indeed, populists are leveraging widespread discontent over severe and growing inequality with respect to income and opportunity, but they didn't bring us here. Neoliberals did.