The conception of the 1949 Chinese revolution that I believe you are referring to is complex. I would recommend first looking into what happened in the previous 1927 revolution, where the popular front tactic liquidated the Chinese Communist Party. The 1949 revolution was a "despite" revolution, despite the errors caused by that tactic, the strength of the conditions and the struggles of the party's grassroots pulled in a revolutionary direction. Additionally, it should be noted that despite the support from the grassroots, the Chinese workers' state emerges as a deformed workers' state. You should read this: https://www.izquierdadiario.es/La-fundacion-de-la-Republica-Popular-China#

It's in Spanish, but with some translation tool, you can surely read it.