But the basic framework does not need to be re-written. China today still has a Soviet-style constitution. The first article reads "the alliance of the working class and the peasantry is the leading class". Why fix an unbroken wheel?
And I disagree with you that a constitution is not important. "Constitution-centrism" isn't just American, the USSR also saw it as a very important thing.
The judiciary should indeed be political, but also independent. A judiciary that is not independent, even if it is fully under the democratic control of the working class, is still prone to corruption.
The hukou system essentially separates China's population into 2 castes: urban and rural. It's directly discriminatory in many ways.
I agree that human rights need to be asserted with a class orientation, but this doesn't mean human rights aren't important for socialists. Also, to state that "the bourgeoisie has no human rights" isn't actually correct. Capitalists are still human, and the only area where their rights will be taken away is in relation to their ownership of the means of production. It doesn't mean capitalists aren't given basic human rights in other areas.
National consciousness can never be forcefully taken away. I prefer Lenin's original multi-national socialist federation idea.


Socialist Party of Outer Space 

