Which country's modern cuisine most resembles its cuisine a six hundred years ago?

This may be correct. Though they would appreciate you calling them Inuit, not “Eskimo.”

Presumably you mean that they are eating a lot of imported processed foods. That is true. But that is not their cuisine.

Inuit are only one of the several tribes who are colloquially called Eskimo.

Not if they aren’t actually Inuit.

White people call Yupik “Eskimo” too, but do Yupik like that any more than Inuit do?

ETA: I grant that Yupik probably would not appreciate being called Inuit, either. My bad.

I’d venture that one of these actual natives would probably rather be called Eskimo, a generic term, than be wrongly called by the name of a different tribe from his own by some white guy who thinks he’s got all the native names all figured out.

As I said, my bad. But I was given to understand, from an Inuit, that “Eskimo” was a slur, never appropriate. Maybe he was overstating it. But I try to be sensitive to these things.

I dont think there are any tomatoes in the Cretan Diet. Though, if I’m not mistaken, there are potatoes in it.

According to Wikipedia, in Alaska the term “Eskimo” is relatively common, while in Canada it’s a pejorative slur.