European workers didn’t get their rights from being imperialist, they fought hard against the imperialist elites to get where they are now, and China’s elites are being just as imperialist today as any European or American elite has been since forever.

China and India is apples to oranges. There are a myriad of reasons why their paths diverged. There are other East Asian countries that did better than China way before China, while starting from a much more similar point (or even a worse point).