The income tax credits that to the working poor with kids were in fact a Republican idea. It was simply a way to cut labor costs for companies like Walmart in order to give them a further advantage over the small businesses that they have been muscling out. Without billions in government subsidies these 'free market' enterprises wouldn't be able to compete. In fact your typical Walmart worker doesn't shop there at all. This is why you always see a dollar store, the thrift store and a food bank in the same town with the Walmart.
Of course once private business is completely eliminated it will become a moot point.
Romney Press Release in The Onion