I have seen thousands of cases of people saying that pineapple do not belong on pizzas, in fact, more than a hundred have reported that it would be a sin for pineapple to be unironically put on pizzas.
As well, from the Chinese side of media that I have access to, there has been reported japanese twists to a staple Sichuan spicy tofu dish, in which the domestic Chinese have too considered (such that) adding strawberries to it is a disgrace. In fact, then they expressed that they understood what the traditional Italians have felt when they see pineapple pizzas.
But the Hawaiians felt fine and does not consider the pineapple pizza a disgrace, well, for most of them probably.
Then there is nutraloaf. Made from kitchen waste probably(or the equivalent of), this is served in some prisons in the US. It is edible, but no one likes it.
So, what I am thinking is that when pineapple is put upon rolled pizza dough, it ceases to be pizza for some. When strawberries are put onto Sichuan tofu, it ceases to be Sichuan tofu for those who thinks so.
As someone who has a polar mind instead of a linear one, I have always tried to think of different combinations for food. For example, the Hot dog is structurally identical to a taco, so is a pie to a burrito. Well, topographically, and you have to think really hard, because absolutely no one, unless they have huge gaping mouths and are crazier than me in doing everyday things, would eat a pie like they eat burrito.
So, when does a burrito stop being a burrito? When does food stop being food? If a mixture of perfectly edible things is crafted to be something perfectly edible but is so pungent and unsettling when attempting to enjoy it, resulting that even was it edible, it simply wouldn't be eaten, is it even food anymore?
When does a taco become a non-taco? If I put sausage with mustard sauce instead of anything else in a tortilla, is it a taco, or is it a hot dog? If I use layers of tortilla to make a very thick but narrow deep dish pizza, is it a pizza, a pie, or a burrito? When does a kind of food becomes something else, and when does food become something else in general?