Interesting argument.
Not that long ago, few decades maybe, Canadians didn’t or rarely had access to tropical fruits. Bananas, mangos, pineapples, etc just don’t grow here. We don’t really have sweet fruits, sweetest Canadian fruit that comes to mind is apples, but even then the ones we have now have been cross-bred to be sweeter and crisper than what used to grow. And they only were available seasonally.
I don’t think such sweet fruits should be consumed here, especially not year round. Our fructose and insulin sensitivity just isn’t made for that.
Now, I’ll 100% agree that it’s not the main issue in most people’s way of eating, but to call it an unhealthy behaviour is pushing it a lot.