Re: Victims?
Sometimes it is hard to label a group as terrorist, in the case of ISIS I would venture they qualify, just by the observation of tens of thousands running away from them terrified(or the odd beheading, rape, religious intolerance, etc). Terrorists are by definition enemies of the state, their nationality does not entitle them to any special treatment, terrorists are stateless, IMHO.
To be clear I hate the past and current governments use of terrorist activity to impinge on freedoms of citizens of the UK.