I'm curious but are you living somewhere far from a place with a tropical climate?
In Australia pineapple on pizza is a really common thing. The only person I've ever met who didn't like pineapple on pizza just doesn't like pineapple at all in any context. Over here it is also pretty common to have pineapple on burgers.
My Canadian born girlfriend (who mostly grew up here) has told me that when she visited Canada at 14 and was shown a mango over there she didn't recognise it as a mango because it was so small and weirdly coloured compared to the ones we get here.
I'm beginning to think the objection to pineapple on pizza comes from people not having access to halfway decent pineapple
It's a question of ingredient quality. Most Hawaiian pizza is made with canned pineapple and thick-cut deli ham. Fresh pineapple and also any other pork aside from that ham is a big, big upgrade.
I don’t understand the whole pineapple pizza lobby, it’s just not a particularly good fruit for pizza.