As someone who spent their first 20 years living in rural and very rural areas, they didn't say anything out of line from what I've experienced.
Watching your entire community have terrible health, no job opportunities, awful infrastructure, and little to no access to healthy foods while constantly taking every opportunity to stand in opposition to any politician, bill, or outreach program that may help them is hard to understand.
But I can vouch for the fast food remark. When a Burger King opened in the town I was living in, the line was wrapped around the building and holding up traffic on the road during every mealtime. It was like that for weeks. I moved before the hype died down. A Whopper is a luxury when your other choices is what can be had at a Dollar General and a gas station that sells bruised fruit and single potatoes.
I agree with your overall point, but I find this very easy to believe.