As I noted at https://www.alternatehistory.com/forum/threads/wi-song-jiaoren-doesnt-get-shot.454663/#post-17795313 even the Principle of Livelihood of Sun in OTL was too "socialistic" for many early GMD leaders like Song Jiaoren. A Sun who had been converted to Marxism before 1912 would have had little influence on most Chinese revolutionaries (many of whom were anxious to get merchant and gentry support).
The main problem is that China barely had any industry and virtually no middle class to speak of. Trying to go "socialism of the peasants!" Will end in disaster