Perpetrators of 9/11 don't hate our freedom. That's a phrase that the current administration thought (successfully) could persuade the weak minded among us.
Our freedom was never under attack. Our foreign policy was.
The biggest success of the terrorists and the biggest failure of our government has been to successfully define what all the fighting is about.
Only the "weak minded" believe Islamic extremists are peace-loving people who love our freedom, but who just have a little problem with our foreign policies, and if we just acquiesced a little, they'd leave us alone. Indonesia has little interest in the middle east, yet they are bombed all the time by Islamists. We had almost no presence in the middle east on 9/11, yet they killed 3000 of us. How did they react to the formation of a free and democratically elected ARABIC government in Iraq? With suicide bombs. You seriously believe that if we give them everything they ask for (like Israel tried to do for years), they would leave us alone?
The brutal truth is that these people looked at the widening gap in progress between their stone-age culture, and the freedom and wealth of the western world, and had some serious soul-searching to do. Either they had to admit that everything they had been indoctrinated in since birth was wrong, or they could still cling to their strongly held beliefs and tell their neighbors that the west was nothing but evil and had to be destroyed. If you can't build yourself up, then you tear the other person down.
It is the very destruction of our society, because it is free and doesn't follow Sharia Law, that the Islamic extremists seek, and it is our freedom and way of life that our servicemen and women are protecting. I guarantee that if we're not on offense fighting for it on the other side of the world, we'll be fighting for it on defense on this side sooner or later. Our soldiers fight for your ability to serve on a jury under U.S. law, not on a jury to determine how soon to stone someone who named a Teddy-bear Mohammed.