This is a very worrying phenomen of the modern age. Pre WW1 and 2, war was generally between armies away from the civilian population. That all changed and conflict became truly all-inclusive with civilians now included as combatants. The phenomenon of terrorism also comes into the mix. It's not a surprise that children, with their malliablilty,lack of maturity, taste for adventure and innate romanticism, are dragged into it.
Whilst not justifying this in any way whatsoever, to claim that the problem lies with adults teaching kids to hate Jews or Arabs or Americans or whoever is to track to the source of the problem, but not track it back far enough. Widspread bombing (despite claims of smart technology), the use of drones, the attacks on Gaza which directly impact (sic) on the children draws them in as combatants, or to coin that awful phrase, as " collateral damage". If your family, village, mother, father, brother, sister, cousin, uncle, have been killed or mutilated by a vastly superior military force, there may be little option in a child's mind but to retalitate in whatever way possible. If you have seen your house violated by foreign troops, your brothers arrested, your land stolen,your house bull-dozed, your school burned out, your parents shamed and left powerless at a border-crossing or checkpoint, you may well see a visceral hatred in the child. What exactly about this radicalisation should really surprise us? If we consider it, we may conclude, that despite the heinous sight of watching children act out suicide missions, their attitude is perfectly comprehensible and rational in context.
All human behaviour is governed by reasons. We cannot act without them, we must look deeper into the reasons behind this, and not dismiss it or wrongly conclude that this is somehow the sole effect of radicalisation or islamicisation alone. I ask my Israeli friends to explain to me what exactly makes a young adult feel that their only option, their only act of resistance, can be brutal self-distruction? I still await a coherent answer.