In Sweden, people put sauerkraut on pizza. In Japan, people put seaweed on pizza. In America, they make pizza which is basically tomato soup in a bread bowl. I've heard of people putting banana, marshmallows, strawberries, or caviar on pizza. Some rich douchebags even put black truffles and actual gold dust on pizzas.
And yet pineapple pizza is the hill so many people chose to die on? Pineapple? Really?