In my view retailers have to adapt or go out of business. Online sales are a reality. Those that adapt will remain and those that do not will close. Maybe a good model is a mix of retail places and online? Models like John Lewis comes to mind. You often browse in the shop, but buy online then collect from a John Lewis or Waitrose store.
Like the commercialisation of Christmas, Easter and Halloween, I think Black Friday has no place in UK society. If you like this sort of thing in the USA, by all means keep it there. I, for one, hate it. It is retailing of the worse sort.