New York pizza isn't Chicago pizza, which isn't California pizza, which isn't Detroit pizza.
Each region has its own signature style, its own unique way of making pizza. It can be hard to believe they're all variations on the same theme.
And none of the styles is precisely what you'd get in Italy, the ancestral home of pizza and a land full of its own proud regional styles. Yet the residents of New York and Chicago and California and Detroit all swear that their method is the only true way to make real pizza.