One more possibility you haven’t considered: our isolated lives in the suburbs, surrounded by privacy fences and secured by surveillance and alarms and multiple locks are a historical anomaly: our ancestors lived in actual communities where they knew each other! And their extended families lived close by, or in the same house. The luxuries we now assume to be necessities did not exist, so people actually had to help each other.
How can we break through our current suburban isolation? One approach is to form neighborhood garden guilds, where folks exchange ideas, surplus produce, tools, labor, and skills on a regular basis, growing gardens, growing community, and growing awareness.