Apostates from Islam in England

Here is part of a documentary exploring the treatment that English converts from Islam experience at the hands of their former coreligionsist in the Muslim communities of England. Please note that this is happening in London, not Riyadh.

The contemporary (i.e., 1991) Al-Azhar (Cairo) Islamic Research Academy-endorsed Shafi’i manual of Islamic Law, ‘Umdat al-Salik (pp. 595-96) states:
"Leaving Islam is the ugliest form of unbelief (kufr) and the worst…When a person who has reached puberty and is sane voluntarily apostasizes from Islam, he deserves to be killed. In such a case, it is obligatory…to ask him to repent and return to Islam. If he does it is accepted from him, but if he refuses, he is immediately killed."
So says the Harvard University of Islam. And if this is the teaching of the elite, imagine the state of mind of the peasant. The future of the world will in some measure be determined by whether the religio-political system of Islam can come to terms with modernity. If the sovereignty of Islamic Shariah may be felt in the heart of London, whither the power of Western civilization and the great cause of human freedom?