I agree with your points. But to use the example of Catholic Paedophile Priests, most Catholics and eventually the Church itself came out against them - hence they are marginalised by their own.

The general perception - and I am sure the Media is partly responsible for this - is that most Moderate Muslims remain silent in speaking out against this which would allow the majority to marginalise these individuals. Many might feel that there is no need to do so as clearly this is the work of fringe nutters, but as in exams thinking that is not displayed is not often assumed.

Although there is a lack of understanding, there is none required on this particular issue: they are wrong and should be punished / removed from the UK. These two issues should not be linked, as invariably one gets unfairly tainted with the other.