[...] From Marx on, the truly radical Left was never simply 'progressist'. It was always obsessed with the question: what is the price of progress? Marx was fascinated by capitalism, by the unheard-of productivity it unleashed; it was just that he insisted that this very success engenders antagonisms. And we should do the same with the progress of global capitalism today: keep in view its dark underside, which is fomenting revolts.
What all this implies is that today's conservatives are not really conservative. While fully endorsing capitalism's continuous self-revolutionizing, they just want to make it more efficient by supplementing it with some traditional institutions (religion, for instance) to constrain its destructive consequences for social life and to maintain social cohesion. Today, a true conservative is the one who fully admits the antagonisms and deadlocks of global capitalism, the one who rejects simple progressives, and who is attentive to the dark obverse of progess. In this sense, only a radical Leftist can be today a true conservative.
I wouldn't really call it a dark underside ... it's a feature, not a bug (that's how it re-invents itself, and maybe eventually, as tech continues to develop, that's how we move to a post-capitalist world?)