The big link I see is an overlap of immediate goals that arise from an overlap of motivations. If you're in a colonized country that's run by an imperial capitalist stooge, whatever your ideological starting point is, you want better conditions for ordinary people and your immediate goal is to overthrow said stooge. Then, as your struggle matures, you find out that capitalist states generally oppose you and ML states are willing to help you, so naturally you make friends with your allies and listen to their ideas on political theory.
The big link I see is an overlap of immediate goals that arise from an overlap of motivations. If you're in a colonized country that's run by an imperial capitalist stooge, whatever your ideological starting point is, you want better conditions for ordinary people and your immediate goal is to overthrow said stooge. Then, as your struggle matures, you find out that capitalist states generally oppose you and ML states are willing to help you, so naturally you make friends with your allies and listen to their ideas on political theory.