It's a pretty short opinion piece but here's the last paragraph that sums up Zizek's thoughts.
The big question that haunts us is of course: can you abolish market freedom without abolishing political freedom? You certainly can abolish political freedom without abolishing market freedom — China proved it. Yet the final result of its rule seems to be to provide a new form of authoritarian capitalism which will replace liberal capitalism. Is China then today the biggest threat to a genuine democratic emancipation? Should China therefore be the enemy of the left?
He's looking at the collapsing USSR of his childhood and all socialist projects ever and insisting that they're the same picture. Guy's allergic to trying to figure out the history but he doesn't seem to mind drawing conclusions and abstract knowledge from his limited personal experience of it.