Yeah, I'm sure Hitler tried to implement 'socialism' too.
How do you measure this "success"? In terms of trillions of dollars of bailout funds? In terms of persistent widespread poverty?
Wait. Where's my cue to laugh? Oh, I guess it's now - ho ho ho!
Now that it's out of the way, let me just say that I pity the square thinking that marks most bourgeois intellectuals. All you talk about is systems, as if everything falls neatly into different categories.
Here's some news that's not exactly news by now: the Soviet and Chinese systems were/are but forms of state capitalism, meant to fast-track both countries to an industrialised stage. But it seems some of you know that already. And, certainly, there are deep rooted problems with their philosophies and methods. But while you of the old world are content to argue endlessly about one system versus another, we talk about a living struggle. Socialism is struggle.
We are talking about justice as struggle. Read that, liberals.