Not sure about Kifflom's agenda (if he has one) but he is right that there is a part of Islam that promotes violence against infidels. If you've studied Islam then you will know this. You cannot escape that. Personally I think groups like ISIS have completely warped the Qu'ran to suit their own agenda, but it is a misnomer to say that ISIS have nothing to do with Islam. My personal view is that all religions have aspects that promote hatred and intolerance against non believers and/or condemn them to eternal hell for not believing.