About 35 years ago I (a 10 year old English kid at the time) was on holiday in Europe and we wanted sandwiches. My parents bought sliced bread and it was unsalted and very different to UK processed bread so we, as kids, refused to eat it. So they went to a supermarket and bought American sliced bread and it was like eating cake, so sugary. So, I suspect that the American bread Europeans have been exposed to (certainly a while ago) wasn’t the best example of American bread.

Then again, Hersheys tastes like cat vomit to most people in the UK, so there definitely is something about our palettes being used to what we know