A strong and confident religion, dismisses blasphemy with a shrug. Not much choice in the UK anyway, where it is a daily occurrence.
I struggle with Islam. As a child I lived in Malaysia and Singapore where all the main religions were present in the community without friction, we all celebrated every religions major festivals. I went to school with muslim and Hindu girls, work colleagues of my parents were Muslims, and Hindu and we socialised together
But at the heart of Islam is the belief that we are all born Muslims and anyone who does not embrace the religion is an apostate, who should at best be shunned. As with most religions, its followers usually ignore its more extreme teachings and get on with everybody, but this belief is there and the rise of extremist Islamic sects, whether Wahabis in Saudi Arabia or ISIS, for some reason shows how it is now gathering adherents. the behaviour of Pakistanis on the clearing of Assia Bibi, shows how close to the surface these extreme views now run.