(Credit: Last Week Tonight) Every politician insists that small businesses are the backbone of the U.S. economy. But when it comes to fair competition, there is not nearly enough regulation to prevent gratuitous corporate consolidation. Luckily for America, “Last Week Tonight” host John Oliver explained why the lack of corporate competition is hurting consumers, even taking a shot or two at his own corporate employer in the process. From the airline industry to beer distributors, much of the economy is dominated by two or three corporations in their respective industries.