<<It's ironic that a communist nation like China embraces capitalism to reach that end. >>
What's ironic if a theory has to adapt itself to facts encountered along the way? Why should Communist theory remain where it was in 1920 any more than American race relations theory has to remain where it was in 1920? Ever hear of adaptability?
It might be that communism is a necessary phase on the road to national liberation or pre-capitalism or even that capitalism can be useful at a certain stage of socialist development, to be shelved further on down the road of socialism. Even that communism itself is of limited viability and must disappear after the material and other developmental progress of a society has reached a certain point. All of those are possible, some more remotely than others, none of them really "ironic" except to those who don't think change is possible anywhere other than in their own backyard.