Mostly just the part where you claim that "modern" pizza was invented in the US. Not a different food, not a variation with its own history - just straight up "modern" pizza. That's a very sad and mildly insulting way to describe a global hit with Italian roots. Mass production alone doesn't give any country the right to claim to have invented a food.

I can understand the frustration of tourists when they expect something different from the authentic version of a dish, even if that's pretty unlikely with a dish that has so many different styles all over the world, but you make it sound like pizza, as a whole, is a US invention and Italy serves some antiquated precursor... Also, Italy serves many different kinds of pizza. No one should feel forced to go to the most traditional restaurant in Naples and order a pizza margherita, even though most people will probably like it.