That’s the thing: you’re proving the idiom in the way that you’re arguing. Naively, one would expect that comparing fruit is easy; after all, they’re both fruit. Two nations have supposedly, in an official capacity, made the same statement (which I don’t believe without you providing a source, and yes the burden is on you).

The thing is that these are all superficial observations on complex entities. The idiom of comparing two fruits is a common idiom in many cultures, and it’s not for want of an internet commenter pointing out that they’re sweet, have seeds, and are similar colour.

General point: practice making pithy arguments based on well researched points. I’m struggling to see an actual point in the drivel you’re writing. It isn’t a reading comprehension issue; I read and write dense academic articles for a living. Short, pithy sentences are simply better writing.