I probably won’t be able to articulate myself as I would like to, but I’ll give it a shot.
This person was underage when she left the UK. She was a child. She was groomed online and was married to an adult far older than her. At her age, the UK law protect children and she was not able to provide consent. She is a victim of grooming/child sexual abuse/online radicalisation.
She was let down by the people around her that should have protected her. Blame cannot be placed on one person, but she was targeted by extremists and victimised. God only knows what happened to her.
I don’t dispute that she probably was involved in horrific crimes and assisted terrorist activity (where there would be victims as a result of this), but I do believe she is a victim of radicalisation and child sexual exploitation.
It is a huge ethical dilemma whether she should be held responsible for her actions, or whether the people responsible for grooming her should be held responsible.
As others have said, if she had been a blonde haired, blue eyes, white girl from an affluent family, I very much doubt she would be receiving the same opinions.