Sometimes compassion for the perpetrator is cruelty towards the victim.
“He who becomes compassionate to the cruel will ultimately become cruel to the compassionate.”
When people read the Bible and think it is terrible that the Israelites killed their enemies, do they ever ask themselves what the enemies were guilty of doing? Most of the time their enemies were guilty of child sacrifice.
When you are kind to the cruel, you are being cruel to the kind.
And these same people do not question all of the wars that their own country participated in.