Unfortunately, if this follows history, the safest thing to do is to not do anything, blend in, and wait for external help. Afaik, only a handful of Germans who resisted survived. But, I don’t see any help for us coming anytime soon.
I recognize the optimism, but realistically, without a strong and strategic leader, coordination will collapse into disorganization and infighting. Historical examples like Occupy Wall Street demonstrate that leaderless movements tend to self-sabotage and generate instability without achieving meaningful outcomes.