I'm truly surprised by people that think these barbarians should be treated humanely.
Right. Dehumanizing the enemy was always such a good way out of moral quandries, wasn't it ? "They don't deserve to be treated as humans because of XYZ." A rather popular justification for atrocities and general injustice at any scale, methinks.

As my brother once told another Junior Sergeant in the army, "go earn Iron Crosses in commando training and leave us civilized folks alone."

Bloody apologists.