It doesn't matter if it's American or anything else, when one culture is adopted entirely, the one that was holding its place deteriorates. That's just basic logic. Other parts of the world are how they are because of what surrounds them, the landmarks, the food, the music, the people. When you stop looking inward at them and look outward for identity, what's around you changes.
I love the United State of America. It is a wonderful country. With that being said, it is not the only way to live. It is wrong to try to force the rest of the world to adopt to our ways. Adopting to American ways would decay unique international cultures. There is no reason to force our way on everyone else. People should choose for themselves.