"fundamentalist Islamic Brits are better getting themselves killed in Syria or Iraq,"
There is no evidence that those leaving Briatain to fight in Syria are 'Islamic fundamentalists' - the war, which has been described as a civil war, developed from 'The Arab Spring'
Despite being Britain's trading partner, Assas is a mass murderer and a war criminal and he is still in charge of Syria, so describing the fight against him as 'Islamic fundamentalism' misses the point.   
We only have the word of "General al-Basheer" (the war criminal of Darfur) that many of those fighting elsewhere are from British - and, as this quote comes from our own resident war crimes denier, we have no idea of the numbers and the origins of any of the fighters.
That it is better that those who are should be killed rather than return home and extend their cause into Britain is hysterical 'volcano-squatting' in the extreme.
There is no evidence that even the most extreme of fundamentalists have any intention of extending their campaign to the West in general or Britain in particular.
This gets more and more Dr Strangelovish by the minute.
Jim Carroll