I think there's an argument to be made that a lovingly crafted ale or wine is superior to PBR and that Stilton and Brie are better than aerosol cheese
Still, I don't think such a hostile attitude is going to allow you to get the most from your experience. European culture might not be superior, but it's very very different. In my country, 100 miles is a long way, but 100 years isn't a long time. In 3 hours, you could probably be in a city that is pretty similar to the one you live in. In 3 hours, I could be in France, Ireland, the Netherlands, Spain, Italy, Germany, Denmark... Europe is dense, and it is really very old. I walk past buildings on a daily basis that are older than your country. My brother has a Kiwi girlfriend, and she cannot believe that the pub my brother used to work in is older than any building she has ever seen. Our continent was developed before the automobile, our cities don't have grids, or detached houses. Europe is chaotic and organic. We have castles and cathedrals and walled cities, a twenty minute train journey can take you to a place where the accents are completely different, it must be very different from anything you've ever known. You can keep up the yippee ki yay bollocks, but that would be a shame, because if you approach travel in an open-minded and positive way, you stand to enjoy the experience a lot more. I'm going to visit America in about a year, and I'm not having a fucking whinge about it, I'm excited. I could say "Time to see what's so great about the land of the free (where you get drug tested at work and can't get an abortion), I can't see why THEY'RE NUMBER ONE, but I guess that's just because I'm a dry effete cerebral English prick who might be gay, just like the rest of us", but I'd rather try to gain an understanding and appreciation of your culture, rather than slating it before I've even experienced it.