The problem here is that you do not know how to shop or find a decent restaurant. I can find truly bad food anywhere in the world, the US does not have any sort of monopoly on this.
Look at the other way around. It's possible to find good food if you know good food and keep looking. That is a problem when people grow up with that, they rarely know good food, thus they cannot find it.
I can guarantee you, take an average family in the US, make proper food for them for 6 months, and then server a meal that they used to eat. They will find it bland, too salty, and too sweet.
