You see China’s economy not as a mosaic of sectors with different levels of development, but as a monolith. This is not materialist analysis. The commanding heights are already socially owned, and the limit of marketization is centralization, when markets themselves become impedements to growth, rather than facilitators of it. Marx believed capitalism played a historically progressive role in preparing the basis of communism not based off of vibes, but instead looked at what markets do: develop small producers into centralized production, at which point they outlive the market phase and decay unless nationalized. Read Marx.