What are blowback's sources for PRC's support for these?
I ask because I recently finished a book by a Sri-Lankan Buddhist anti-imperialist, who claimed that the PRC backed the soft-left party against the communists in an uprising in 1971. Yet when I looked into the sources, it seemed like the PRC supported the other side.
Interestingly the USSR backed the nominally socialist party against the communists in that one, but only with a small number of advisors.