...”Will they say, kindness and compassion killed them?”...
No, they’ll compare us to Romes fall for doing the very exact thing here.
Rome fell when it also became to civilized to do what's necessary to survive in an uncivilized world. When Rome dealt with barbarians as it did with Carthage (killed every man, woman, and child of them), they had peace. It was only when Rome attempted to deal with barbarians using diplomacy and tribute were they defeated.