Yeah but imagine how absurd it would be when the isekai'd Swedish person digs the fermented/rotten fish out of the ground and everyone cums because of the smell and taste. It's kind of a funny image, at least to me, since it's so absurd. As is the idea that someone would miss it that much to recreate it and boast about its greatness.We don't force anyone to eat surströmming. We force them to smell it, and then we challenge them to eat it or laugh at them for being wimps.
Just the idea of people from other countries acting like Japanese isekai protags is funny. The only countries that could realistically pull it off would be Italians and The French since they're so snobby and particular about their cuisines.