Actually, it is quite well-defined. Here you go:
"1. Having a highly developed society and culture. 2. Showing evidence of moral and intellectual advancement; humane, ethical, and reasonable: terrorist acts that shocked the civilized world. 3. Marked by refinement in taste and manners; cultured; polished."
So, either America has no:
1: Highly developed society and culture 2: Evidence of moral and intellectual development or 3: Refinement in taste and manners
Now, which of those do you think we Americans would take the least offense to, at being lumped into a board category of "uncivilized".
I find it striking that there are people taking the time to make pot-shots at America on a technology site. We need only look back a short period in history to see that civility is a very recent trend in most parts of the world, and especially so in Europe. It would be most beneficial to all of us to politely ask how we can improve each others' lives, rather than goading people into defensive postures.