@-Talbot-
//But what is the background to these terrorist that are already here? //
Oh, about 20 years of having to put up with the p-word, or the n-word or just everyday, run-of-the-mill, casual racism from people dressed up in the union flag.
Funny thing the brain: it works by associating one thing with another; nerve cell connections made and then reinforced by repetition.
My guess if that they met 20 skinheads for every liberal luvvie then, on the whole, they would despise their fellow British citizens.
But, if their book actively instructs them to not even mix with indigenous prople in non-muslim countries, let alone coming for a pint and mellowing out, then it is understandable that they get pi::ed off with us.
Instead of the two terms "moderate" and "extremist" maybe we should distinguish between those who are "tolerant" *of us*, including the abusive types, and "intolerant" ones. The former will probably come across as exasperated whereas the latter will be, superficially, charming. That's what psychopaths are like.