It's an illusion of choice. You've got eight different corporations spending billions of dollars in "Pick Me!" marketing campaigns, but its all just the same sad looking chicken sandwich.
All the ingredients for those sandwichs come from Sysco. You get some minor variation in preparation style, but you'd get that as a matter of course from a thousand independently run sandwich shops anyway. Corporate ownership of the real estate and IP does nothing to increase diversity or improve quality.
that's not fair! our sandwich has a sauce that is formulated to be the closest we can get to chemically addictive without the FDA nuking our headquarters!