I would argue that of the three items you listed (bananas, coffee, chocolate) that the main reason those items are “cheap” is exploitation of the workers and economies of the global south.
https://daily.jstor.org/fruit-geopeelitics-americas-banana-republics/
This is just one popular science article on the topic, and it just brushes the surface of how colonial politics have stripped the global south of resources while simultaneously building capital in the global north.
This single pane comic is the jist of it.
This is an incredibly biased article that elevates a voice equating the support of ending the Palestinian genocide with anti-semitism, which is demonstrably false.