Correct. In principle, a conveyer belt oven could produce good results by adjusting temperature and speed correctly, using quality ingredients prepared right, but almost all Americans do not want good pizza, and will be angry if they get it. They want bad pizza just like the last bad pizza they had.

It is practically impossible to teach people to want good quality when they are used to bad, and a reliably losing business strategy.

There was a movie about this: "Big Night" (1996, Isabella Rosselini, Stanley Tucci).