Explaining why would have been more interesting than the insult.
10 year old children become radicalised, kill toddler, spend many years in detention then under close supervision.
15 year old become radicalised, runs away to join a terrorist group fighting her own nationality, forfeits her citizenship and has to fight her case to reclaim it remotely from the Syrian camp or wherever she is rather than being allowed back to the UK to fight it. Seems reasonable.