Doesn’t matter what the wage rate is if they close their stores because they are non-competitive. Zero workers at $20 or $50 dollars an hour equals zero pay checks.
I can think of two S&S stores in my area with much more competition than even a year or two ago. One has two non-union full service grocery stores directly across the street, visible from the S&S parking lot. Additionally a Costco, new Aldi and just renovated Super Target withing a half mile and a Super Center WalMart about 8-10 minutes away.
The store store where this rally was held practically shares a parking lot with a non-union competitor, a Super WalMart across she street and a Price Rite ~1.5 miles away.