Neither one of us is inherently right or wrong. It's a matter of personal opinion, and even though we try to, it is not really possible to quantify the difference as a percentage in any meaningful way.
I think the discussion here is trying to highlight that many people in the US value better food less than many people in some countries on the old continent. For a given choice, an American will not think that the difference is worth the price (or effort) while a Frenchman or an Italian (I'm trying to use example s from this thread) will not even consider eating the lesser version.
I speak from personal experience. I've spent most of my life in the US and six years ago moved to Europe. My tastes have changed, and whereas before I like American food, now my tastes have shifted and a lot of American food does not taste good to me. Now, when I go to the US, a lot of food is at best flavorless and at worst disgusting. Most glaring examples are breads, cold cuts (a.k.a sandwich meats) and tomatoes.
BTW, this is not universal across all foods. I still find American hamburgers (not fast food) to be better than their European alternatives.
I find some things I don't notice as much difference (cream, butter) as I will others (milk, eggs)... There are other things that are a matter of taste (grain, grass, grass-finished beef). I wish, for that matter, that more labels contained what they were fed especially for milk and eggs, as the difference between brands/containers and locations is huge.
I try to cook at least once a week, and sometimes that means spending a day making broth/stock (mushroom is an absolute fav, but the most expensive where I live). I find that there are just a few things that make a huge difference, and others not as much... others still are a matter of preference. I also find that mouth feel is as personal as anything else in terms of enjoying a particular food.