I admit, I have, and still do to an extent, flip-flop on this one, past-Kyle used to be militant in his view that Begum gave up her right to be called a British citizen, like me, when she joined a group that hated anyone that wasn't one of them, even Muslims if they weren't "the right type of Muslim", that didn't conform to their ideology. However, I have actually changed my view as I have gotten older and think that we should not just wash our hands of Begum and deprive her of her nationality like that, that is cowardly.
I will forgive my past-self as she has not exactly said anything that would engender sympathy, she's not exactly seemed remorseful of joining a cult that despises everyone that is not them, and I still have my reservations, but it's about doing what is right. I do actually think the Government has a case that she may pose a national security risk, as I said, she has not disagreed with some of the founding principles of ISIS, but the country must do the right thing.
It's easy just to say "she's not our problem", and I am also not completely sold on the fact she was "brainwashed", at 15 years old, you should know right from wrong, but I sit here in my ivory tower, so I do not hold too much weight to my opinion. I personally think she should be given back her citizenship and given the right to a fair trial in this country if she has broken a law. I know I may sound like I am on the fence, but I can see both angles, but I do not think deprivation of citizenship is the right thing to do in any case.