The fascinating issue is whether they go abroad to breed and clean the house or to what extent they are allowed to do more. The women seem to have taken over policing rules in Raqqa so they are not bound to hearth and home - they are out there reporting infractions. There are some, not most, women being trained to kill but a lot of them get out there and they dont' have their mother making the meals and cleaning up after them and they are expected to and it's not as much fun as they thought. They discover their God wants women as second class citizens locked away worshipping their man and seeing to his every dull domestic need.
Most UK muslims do not want violence. I live near huge numbers of them and they are hard working normal UK citizens. The problem is that the religions is so fundamentally awful and violent and sexist that if you get idealistic young people they take to its extreme and most pure form - young people always do that - they always start off more extreme about everything and become due to experience of life milder later. They have more scope than Christians do for this at the moment. The new testament goes on and on about love being the greatest thing and letting others have their way, loving your enemy and all that stuff but those aspects of the Koran for some young people seem to be getting ignored. Christianity also has the "render to Ceasar that which is Ceasar's and to God that which is God's" - pay your taxes, obey the laws of the state where you are, be a good citizen. Most Muslims live like that too despite what we read in the press.
All religions have always had a problem with the extent they should be seeking to convert others and take over nations to spread their word however.