You’re close, but missing some details - the mass quantities of milk didn’t come to be for no reason, it was a massive increase of production during WW1. The US made a shitload of condensed milk to feed both their soldiers, and, more importantly, exported a whole bunch of it to the Entente.
After the war demand naturally crashed but all the facilities and logistics for this production still existed, and the Department of Agriculture didn’t want the dairy industry to crash, and they didn’t want all that industrial capacity to go away in case of another war where they needed a bunch of condensed milk again.
So, they put out a big propaganda campaign promoting this stuff to home consumers, and naturally, this led to a increase in popularity for more normal forms of milk as well - this compounded on itself over the next few decades with additional advertisement campaigns - both government backed and those backed by the dairy industry - to promote milk more. By the 50s/60s milk-drinking reached it’s peak, and because of the popularity over multiple decades it just kind of got culturally ingrained - particularly for children, but adults still drink a lot of milk too, although the numbers have been going down recently.
That’s the big picture cultural reason - as a mayo American myself, I drink milk because I like the taste and texture.
According to the 2020 census, Asheville’s population is 10% African American, 8% Hispanic, 4.5% mixed race, 0.6% ‘some other race’, 0.27% Pacific Islander, and 0.26% Native American.
That’s a full 25% of the population that aren’t ‘kkkrackers’, and god only knows how many of them, including the aforementioned ‘kkkrackers’, are deeply marginalized in other ways - being queer, nuerodivergent, disabled… being a member of any marginalized group in an area like Appalachia isn’t easy, and now this flooding has destroyed all their lives just as much as it’s made the ‘kkkrackers get soggy.’
Be serious. It’s a natural disaster in an extremely poor area by American standards. It’s not just fucking over a bunch of rich white people.