I totally agree with your analysis of suburban Americans' lifestyles! Social isolation is endemic in suburbs.
> eating bad manufactured food
Things have changed dramatically in the last two decades. Food quality has never been better in suburban areas. Every Publix and Kroger has oat milk (I'm using this as a proxy for variety). Produce is fresher and longer-lasting. Consolidation and urbanization has left many rural towns without a local grocery store, requiring longer trips to get food, but suburbia has great variety. Overall food quality and access is better.
You might use oat milk as a proxy for ultra-processed food. I used to live next door to a farm and I know how milking works - don’t ask me to milk an oat, though.
> eating bad manufactured food
Things have changed dramatically in the last two decades. Food quality has never been better in suburban areas. Every Publix and Kroger has oat milk (I'm using this as a proxy for variety). Produce is fresher and longer-lasting. Consolidation and urbanization has left many rural towns without a local grocery store, requiring longer trips to get food, but suburbia has great variety. Overall food quality and access is better.