Some small businesses employ people for a living wage, but I think most fall into the category of the guy who is the lone employee in his own business. Like me! Or a paint crew of 3 guys who struggle to survive painting remodeled houses, or small roofers, landscape folks, etc. The guy selling hot dogs from a store parking lot is small business too.
Fast food chains, retail dollar stores that pay 50 cents above min wage. If we have to rely upon small business to bring back the over 10 per cent of the middle that is gone, we will be waiting a very long time.