how can anyone justify using the word terrorist as an insult if they are from the US, a country FOUNDED by terrorists
Well, there is the fact that our country was founded over 250 years ago and no one alive today had anything to do with it. I mean, does this mean that no one in Germany today can call the United States or Israel imperialistic nations EVEN THOUGH THE SHOE FITS?
Guess what, guy: the human race is good at war. One of the most primitive instincts within every one of us is to destroy something that prevents us from accomplishing the perceived needs of our collective group rather than compensate for the needs of the group across the street. War is how we, as a species, get shit done. It's ugly and it's brutal, but I can pretty much guarantee that there isn't one square yard of habitable ground on this fucking planet that hasn't been fought over at one point or another.
Also there are plenty of modern examples that could justify your argument without having to bring up the stupid fucking revolution. What's next? You want a cart and a donkey?