Certainly, there is a connection but I don't hear anybody saying that Arabic is a violent language.
I think we've run into a stalemate situation here where I don't either of us is going to convince the other although it has been fun trying.
Nevertheless, as you seem to have a more intimate knowledge of the Koran than I do, it would be interesting to hear from you what precise (or even paraphrased) comment in the Koran makes you believe that this book incites its adherents to violence.
Given the animosity towards the Muslim religion in certain parts of the world, I believe that if these violence-encouraging passages really existed, they would have been flaunted and exaggerated in the media of those parts of the world.