I love pineapple on pizza, but the key to its greatness is using small pieces on top of the cheese and even giving them a little squeeze before cooking to prevent an over abundance of juice.
For kiwi on a pizza to be even mildly appetizing at face value IMO the pieces would need to be quite small. I don't want a mouthful of sweet. A hint of sweet along with all the saltiness in the pizza is what makes sweet/salty pizzas amazing.
Pineapple belongs on pizza. Only stuck up assholes who never tried it say otherwise. Ever tried pickles? Pizza with onions, sausage and pickles is great.
FYI America is not the only country Italians live in. They also populate a whole country on the other side of the world. The Italian Americans that colonized this country called it Italy and named themselves "Italians" (without "American", I know, it's crazy!).
Only reason I'd say no is that it looks like shit sauce and shit crust. I'd still try it, but it wouldn't be a good pizza in the first place, so I wouldn't consider it to be a definitive example of what kiwi on pizza would be.