As someone who left a part of the country that votes Republican to Dem 9:1, this is the mindset of most rural voters (where I'm from at least).
They think pollution and grime are "city problems" because city people are just "dirty sons of bitches". These are people who, once their car breaks down, they just put it into the woods/a creek and forget about it. Old tires? Do the same. Loads of plastic garbage? Slow burn it outside since they don't want to pay the monthly garbage fee. These people think they're clean, but they never stop talking about how it's getting dirtier these days because "those city people are buying up houses here and bringing their shit with em", and not that their waste has just accumulated. In my chunk of rural America, the only reason it's not a total wasteland is because the population density is so low. For how many people live in cities, they're pretty clean. If they were to adopt more rural lifestyles, waste would be everywhere.