Talk about left field and missing the point.
I don't think I can really speak for Nazir in this respect, but even if he and I were of that opinion, how does it change anything? Or the argument over violence for that matter?
See, if I were Muslim and I were facing a guy like Nazir, I would counter him the right way. If he claimed some specific Qu'ran excerpts suggest violence, I would find every hadith and other commentary talking about proper context of every single one of those excerpts. We'd most likely disagree, but what else is new?
If he'd fall back on generalities saying jihad is violence, then I'd say something along the lines that jihad is ultimately a struggle, the greater struggle within but also a struggle for an external cause and it does not need to and shouldn't be violent. The issue of those using jihad of the sword would be tricky, but I could claim that they ultimately tarnish Islam's image and it would be rightful jihad to oppose them. Nazir probably would not buy it, but I could always say this is what I was taught and this is what I believe to be true Islam.
To me, this sounds easy. Of course Nazir would probably hold his ground and still claim Islam is violent but to paraphrase Zapages: 'So what?' Agree to disagree and move on to the next point!