You just described the PRC, and notably not capitalist dictatorships, whose governments don’t represent their people / working class, but the interests of capitalists only.

You desperately need to get past this poli-sci-intro-level understanding of what states are. States are organizations of force for one class (meaning in Marxism their relationship to production) to oppress another. The USA and other liberal countries are capitalist dictatorships over workers, while the PRC is a worker’s dictatorship over capital.

Here are some resources:

• https://dessalines.github.io/essays/crash_course_socialism.html
• https://dessalines.github.io/essays/dessalines_marxism_study_plan.html