IanS: I suggest you study radicalism a bit closer. Radicals are rarely very knowledgeable about their religion and are often recent converts. They find in terrorism some sort of justified release for their frustration, I think.
I do not need to study it any closer, thanks.
But you may need to take a more objective look at what I said in that previous post. Because I am talking there about the actual evidence put before UK courts in more than 200 terrorism related trials. The material produced before the courts is unarguable. And it showed that in “all” cases the defendants had acted largely from a sense of extremely devout religious Islamic belief.
You may not have experienced anything remotely close to that level of cases if you live in the US, but I can tell you that in the UK all those hundreds of court cases were reported in great detail in the UK broadsheet press with many long in-depth articles in the Sunday press from the Times, Telegraph, Observer, and also at times with numerous opinion polls conducted amongst the UK Muslim population, asking for their views on such things as “who was behind the 9-11 attacks”, whether or not the Islamic attackers “were justified in making the attacks on the London Tube system”, “who they blamed for all of the many thousands of Islamic terrorist attacks around the world”, “whether UK Muslims should obey the UK laws or whether they should have more allegiance to what they regarded as the laws of Allah” and “whether or not they would report Islamic neighbours if they thought they were involved in support for terrorism”, etc. etc. And the results of those opinion polls were often quite shocking, with significant percentages of UK Muslims defending all manner of Islamic fundamentalist beliefs inc. the belief that the London bombers and the 9-11 attackers were justified in making their attacks.
But the point I am making to you, is that the UK Muslims who answered the surveys in that way, i.e. with indirect, or sometimes even quite direct, support for terrorist mass murder, were in all cases motivated in such beliefs (and such actions) very substantially by (if not always entirely by) what they themselves were expressing as their extremely devout religious belief in the infallibility of the Koran and the need to obey the will of Allah.
By the way, in all of those hundreds of UK court cases, almost all of the 2000 or so defendants started off by denying the charges against them, even though during the trials almost every single one of them was found to be guilty. Though just be clear & fair, I should add that the vast majority of those 200+ UK cases have involved relatively minor offences such as downloading banned terrorist material, or making public protests in support of Islamic fundamentalist beliefs. Only about 15-20 of the cases have been major high-court trials involving full scale bomb plots or other mass murder plots with defendents convicted and sentenced to very long terms from 10 to 40 years (where 40 years was previously almost unknown as a sentence in UK trials).
The number of more minor cases passing through the UK courts seems to have diminished somewhat over the last 4 or 5 years, though as you will know from recent European news, the actual terrorist incidents on the streets in the UK, in France, in Germany & Belgium etc. have continued in relatively high numbers. But to repeat the point - in all the UK cases, where we have the actual evidence produced during the trials (mountains of it), all of the defendants were shown to be acting very substantially from motivations derived directly from their religious beliefs.
If you say that all these Islamic individuals have misunderstood what it says in the Koran, such that if they had a more precise understanding of their holy books then they would not be making, supporting, or justifying all these mass murder attacks and other lesser attacks, then all those individuals would vehemently disagree with you (as they showed in their UK trials), and so would all those that I mentioned in the UK opinion polls. And most importantly so too would a large number of so-called Islamic “scholars” around the world who preach to millions of Muslims telling them that their holy books and the very words of God himself do indeed require them to support a Jihadic quest for a so-called “Ummah” or Caliphate as a devoutly religious nation for all true believers etc.
And that of course is precisely the stated aim of IS. And before IS, it was also the goal of Al Qaeda under Osama Bin Laden. In respect of which, I am sure you must know that several thousand Muslims from the UK, France, Belgium etc., have in recent years travelled to Syria and elsewhere specifically to join groups like IS in attempting to create by force (i.e., by mass murder) that sort of religious Islamic “Ummah”.
The point is – the religion and it's beliefs are unarguably very dangerous indeed. And religions such as Islam (and Christianity) most certainly should be criticised for continuing to preach about the need for people to believe in an almighty creator with the insistence that the true words of their holy books must be obeyed by all (otherwise you will be sent to hell, by Allah/God himself).