Cultural non-Authenticity

I ran across yet another piece describing Israeli food as culturally offensive because it isn’t ‘authentic’. The potato was introduced to Ireland by Walter Raleigh. The tomato was introduced to Italy at the same time. Pasta appears to have shown up in the 12th Century. Can’t imagine either country without those foods but they’re culturally inauthentic. I can’t think of anything that is specific to a culture: dumplings and other renditions of filled dough are found across Europe and Asia, as is some form of either flat or sliced bread. In the ‘new world’, dumplings and filled things typically used corn instead of wheat but the ideas are similar.