I am 100% with your well written explanation here!

Just one 'nitpick', that isn't really even a nitpick because you did qualify the relevant part with 'tend to be':

A properly grown tomato absolutely can be so flavorful, sweet, tangy, varied, complex... that you could just eat it like an apple.

Not as sweet as most apples, but way, way more sweet than the typical mass produced tomato you're likely to get in the US.

I've been to a few farmers markets where... a couple of smaller farms were growing just absolutely stellar quality tomatoes.

...

On the other hand, squash and zucchini, even the fancy ones from farmers markets?

Main difference I noticed was basically perfect ripeness, they still just taste like nothing.

(I guess I should also point out this was from 10ish years back, sadly, a lot of farmers markets now have a lot of people basically just reselling some particular, slightly higher quality but still mass produced fruits and veggies, than aren't even local)

...

Finally, to throw more insanity on this terminology dumpster fire...

Corn.

Corn is arguably, from different domains of technical or colloquial meaning... a fruit, vegetable, and grain.

After millennia of us artifically selecting (and then just outright genetically engineering) what was originally, basically a kind of grass, we now have something that is now so sweet, that the US uses it to make HFCS, a cane sugar substitute... and then we jam that HFCS ... into bread, soda, everything.

So... ketchup... is then roughly a tomato/corn smoothie, made primarily from two... frui-getables.

Yep.

Fruigetable.

(froojzh-tah-bull)

((im too lazy to look up IPA symbols))

You're welcome, bwahahah!