> There are some vibrant and beautiful towns scattered throughout “flyover country”.

In my experience, these places tend to be where rich people from cities own vacation property or can commute to a city for work. An example in Minnesota is the Brainerd Lakes area, which subsists almost entirely on people from the Twin Cities visiting their lake cabins from May to September. There are some nice small towns and plenty of beautiful homes, but it’s a result of outsiders bringing money in. Next door you have Aitkin County which is poor as hell because it’s basically a swamp/peat bog that has been partially drained for agriculture, 65% of the county is wetlands: https://www.mngeo.state.mn.us/maps/LandUse/lu_aitk.pdf

Most of rural America has been hollowed out to the point where local hospitals are closing. I’m not making any judgements about rural poor people, just that rural areas tend to be poor due to a lack of local economic opportunity.