CLN member, biased perspective:

S brought PFs behavior towards them (S) to the IACI internal, the behavior didn't stop as PF made another post rehashing an old argument with S about nuclear power^1^. S again confronted the org about this and demanded an apology from PF on behalf of the partner orgs/communities who saw PFs problematic nuclear take and reached out to S about it. S felt the org was more interested in keeping this a "personal issue" between S and PF rather than poor behavior towards comrades and insensitive public messaging to "get back" at someone and left IACI. S called out certain IACI members in the CLN internal, then in public, for not providing a safe space in the IACI, and not holding members accountable for pro-colonial takes in a formally anti-Colonial educational org, and actually said they'd "wreck anyone who's pro-colonial" as in literally fight individuals, not in the organizational sense. Certain IACI members ran with that as intent to destroy the org alongside claims of "hacking" individuals' Instagram accounts, the evidence, from my personal and biased position, extremely flimsy.

The "dispute" goes beyond that but at that point it's not relevant beyond personal insults. There was no breaking of centralism, IACI is less than 10 people and horizontal. By the time S had gone public they had left the org.

1: Which is a sensitive subject as CLN has a land base in Lakota territory and that land is contaminated by uranium runoff that a dictator assinated 200 people so he could sell the mining rights to a multi-national firm, his GOON squad worked with the feds to destroy the AIM. We also have partners in the Diné, Hawaiian, and Black Australian communities affected by Colonialism that fuels nuclear power.