If they only sold healthy things it wouldn't change anything. The jobs are low wage. Local businesses employed more workers and paid more than DG or Walmart do,

If they only sold healthy things it wouldn't change anything. The jobs are low wage. Local businesses employed more workers and paid more than DG or Walmart do, so they went out of business. Workers had no choice but to work at DG or WM for the lower wage. Regional wages cratered. Eventually the community economically just can't afford to exist anymore and also becomes dependent on government assistance. This story has been replayed across the entire country but it happens in big cities too.