I thought the real issues with Walmart are that they use sweat shop labour to keep their prices low, they put huge financial pressure on their suppliers, and that they treat their employees like 19th century employees in terms of workers rights.
NOT that their aisles were crowded or their meat substandard or their patrons were american trailer park trash meets british council house rubbish.
I thought there were moral reasons to blacklist Walmart.
BTW they have bought the Asda supermarket chain in England, and there is a huge Walmart in Bristol.