I have spent a week in the US. The hotel buffet breakfast on its surface looked like any other. The typically ‘staple’ foods like bread was laden with sugar to the point where I couldn’t stand to eat them, and the typically “healthy” buffet breakfast options like fruit were remarkably low quality. I thought I had just picked a crappy hotel (though you wouldn’t know it for the price) but others have corroborated my experience. Losing weight in the US seems like pushing a rock uphill.
American breakfast is an abomination. Even the eggs and bacon taste worse than in Europe. In our family we only have it about once a month as a special treat. (My toddler gets it every day but it's not a typical breakfast)
My British wife can't stand the bread in the US. She says it tastes like cake (and her UK friends agree). The funny thing is British bread doesn't taste any less sweet to my American palate.
I recently spend 3 months in the US with my partner, we didn't stay in a hotel. It took some exploring but we eventually found all we needed to eat well. For some reason most supermarkets don't stock fresh bread. I think most Americans either don't eat bread, or eat toast so all bread is optimized for toasting. American bread toasts much better than European bread (because of the sugar content I guess).
We tried about 6 different supermarket chains in the Irvine area, and the only one that reliably stored affordable good bread was Whole Foods. Weirdly all Americans told us Whole Foods was an expensive supermarket, but it was less expensive for our diet than the other supermarkets. Of course Irvine is an expensive area, so it could just be all supermarkets were relatively expensive.
I wouldn't judge a culture by their hotel breakfasts though. I don't think they match typical breakfasts basically anywhere. I don't think many hotels would serve you a breakfast burrito, but as far as I can tell that's basically a staple for many working Americans and it looks like it is actually quite healthy.
edit: to be clear, supermarkets in western europe have always stocked fresh bread for as long as I can remember, but in the past 10-15 years have also started stocking "artisanal" fresh bread. So they sell your pick of sourdough rye/wheat/spelt breads that have all been baked that morning.
