No doubt Don Ciccio deserved what happened to him
Yeah right Mafia don't kill women and children

He killed Vito's father, brother and mother, his whole family and would have killed him if he had been caught He injured him
The enemies have to be wiped out, didn't matter he was senile, one leg in the grave

Michael was no different to Vito in conducting their business but I feel at times Vito is seen through rose-coloured glasses as perhaps because the way Vito is romanticized and portrayed He too was a cold blooded murderer despite his outward nice guy appearances!
Threat of lethal force for his Godson's contract release Killing of prized horse for his movie part

Michael didn't kill EVERYONE just his enemies