The short answer is 'no' because of course Islam is much more than that (so the question is a bit simplistic) But the problem for Islam is it is hard to get away from its roots. Mohammad was a warrior, and the Islamic faith was initially spread by territorial conquests. It has also tended to spawn theocracies (where God/Allah is the ruler over everything...ie Sharia law...which by default means a dictatorship...because unfortunately God doesn't speak on cue). So terrorists live in the extreme end of Islam and find their justification in their founder. Of course we know that there are millions of peace loving muslims.
We also know that Christians have been guilty of conquests in the name of religion too. (Although the crusades ordered by the pope were aimed at stopping the advance of muslim conquerors across Europe, and so i think justified just on self-defence alone). But on the other hand we know that the Catholic church of the Middle Ages was despotic and a monster. But along came Martin Luther in the 1500s and said... we have to 'reform'. 'We have to go back to our roots and live as Jesus lived'. And the church threw out a lot of stuff and went back to basics. Islam has a problem with doing that... if it reforms, it still goes back to its roots... which included expansion by conquest. So it is much harder for Islam to get away from the territorial nature of its roots, and so terrorists will continue to find justification and energy in the same place.