Chinese socialist revolution before Mao's leadership is pretty legit. Chen Duxiu, Li Dazhao, are all real socialists, they truely cares about the worker and envisions a better future for China.
So no revolution at all? 95% of the critical mass and anything that can be called a large scale revolution (with organizational successes of the masses) happened in China in the 30s and had little to do with Chen Duxiu and Li Dazhao previous work ,no matter how admirable. The CPC almost died and was built back up multiple times by the time Mao succeeded and Mao was vital in that. You cant get more legit than revolution under Mao. Under probably the worst odds and situation any communist party and revolution had to face they endured, made correct and miraculous choices and political and military manuvers at every turn and won, uplifting and liberating hundreds of millions of peasants and women. No Mao, no successfull revolution in China and no emancipation of the masses. Good luck doing the long march and outmanuvering the KMT from the countryside by amassing immense support with Chen Duxiu's ideas about the peasantry.
Chen Duxiu, Li Dazhao may have envisioned a better socialist future for China but they were and would have been unable to make it happen. They lacked both the military genius, the correct analysis on the peasantry or the rhetoric and vision of mass politics that Mao had that allowed the CPC to pull through against all odds and win
Those who did either did it on the back of the rest of the world and by plundering and colonizing billions (west and western protectorates) with China still managed to catch up with that in half a century or they just havent yet and wont in the forseeable future (most of the third world) and their progress marely amounts to the most generalized side effects of world wide medical and tech progress. China is bringing to 1.5 billion people the progress, QoL and modernity the former group achieved (and then some) without colonizing, imperializing or impovershing any other nation or people and in 1/5th of the time.No one else did that, no one else is doing that. Other than you know, the USSR (relative to era)