Seeing the conversations around this topic in the post Most Western Parties Are Ossified and Failures I thought some folks might find value in this organizing guide created by USU. It draws from numerous articles they’ve written about organizing ML orgs from the ground up.
Yeah, the BPP wasn’t a failure.
In addition, most Western parties are still around despite fierce repression and propaganda. The org I was apart of lasted 105 years so far despite it all.