I don't think I agree with this assessment. I live in a very rural area two hours northwest of Austin, literally in the middle of nowhere. I've studied the local economy and understand how things work here.
I think the characteristics you've identified in the rural housing supply are not unusual and also not as serious in a practical sense as you seem to be indicating. For example, in San Saba, Texas, 20-30% of the households are under the federal poverty threshold. The median household income in the town of San Saba is about $32K/yr. People just don't have any excess cash so the maintenance on dwellings is neglected. That means folks become extremely thrifty and resourceful patching what needs to be patched, very cheaply, if not for free. Some dwellings simply aren't maintained and one day won't be there anymore.
Families live on small budgets, don't require much and generally just "get by". The municipal and county governments have very small budgets but extremely resourceful staff who accomplish a lot with very little. Everyone comes together as a community when needed (see: February 2021 freeze event) and it all works very efficiently, actually.
To someone who is not from here and who doesn't understand that dynamic, they might see those properties as you described and believe a tragedy was unfolding. But that doesn't reflect reality on the ground vis-a-vis my neighbors.
