Answer: Because of the teachings of the Koran stand contrary to them.
The music is irritating but the video reveals what I’ve been saying forever: the Koran itself – and not a ‘few bad apples’ who mistakenly take its teachings too seriously – is incompatible with Western liberal secular values. Pointing out this fact does not make one a racist or an islamaphobe. It makes one a realist who is awake and aware.
Original article: http://questionablemotives.wordpress.com/2013/11/02/2671/