Uwe Diegel is chief-executive of a medical firm. He also has a past as a classical concert pianist.
So let us get the equation right: the music world may be compared to the Muslim world. And in that case, it is okay to compare Kanye West to a terrorist.
I checked out Kanye West on Wikipedia because I don't know much about him and maybe I overlooked a recent atrocity. I also checked some other sites on news about him. Found nothing to be deeply anxious about. Yes, the usual Famous American rubbish; little scandals, bigger scandals, cross-libelling, et cetera. Nothing to be too shocked about if you follow the show bizz from the side lines.
I cannot draw any other conclusion: it is okay for Diegel to compare Kanye West to a muslim terrorist because West makes music Diegel dislikes. (And, maybe: because Music, to Diegel, is Religion.)