you will find Parmigiano (Parmigiano-Reggiano, the official imported name, as produced in Bologna Italy) the more popular by far because of the commercialization by Kraft (GAG),Actually, Parmigiano-Reggiano® is a registered trademark for a specific type of Parmesan cheese made in in Northern Italy, more precisely in the areas around Parma and Reggio Emilia.
What Kraft makes is marginally "Parmesan cheese," or maybe "parmesan cheese food," but it is not Parmigiano-Reggiano®.
Your statement is equivalent to saying that a Ford makes Ferrari's of various types, including the Ford Escort. Ford and Ferrari both make automobiles, but Fords are not Ferraris. Kraft and the artisans from Parma and Reggio that make genuine Parmigiano-Reggiano® both make cheese, but Kraft cheese is not Parmigiano-Reggiano®