Why not explain the differences? Is it that we are the good guys and they are the bad guys? Is it that god is behind us? Is it that our system is much better than theirs?I won't try to explain the differences, because they are too vast and you wouldn't get it anyway.
Until we realize that freedom is not given to other countries, and realize that it is won by those countries just like it was won by us for us, we will be seen by the Arab and Muslim world as invaders and never as liberators. And as long as they see us as invaders of their lands we will not be safe in our land.
How would you react if some other country came here and told us that our system was wrong and killed our leaders, or gave Texas back to the Mexicans, because it is rightfully theirs.
Any reasonable look at the situation in the Middle east, makes us look like the bad guys. And thumping your chest and saying that we are the good guys doesn't change the truth.