Then ignore the NC-17 thing and focus on the rest of my point.
What exactly was the rest of your point? Ireland has banned 1 videogame and is therefore evil? Certainly freedom of expression is important, but so are other things... access to education, access to healthcare, civic safety, quality of life issues, democracy, moral foreign policy, etc. etc. etc.
There are many great things about America, the story of America is a fascinating and often a fantastic one. America has given a lot of positives to the world. It mightn't hurt though to acknowledge that America isn't perfect either in it's internal or external conduct. In case you haven't noticed the wear-it-on-your-sleave, jingoistic sense of national superiority which is so often associated with some Amercians is oft found to be less than endearing outside the States.