Well, first as the world embraces education and democracy, the rate of violent death decreases. It has little to do with your bogeyman "capitalism".
Our world in data - war and violence
It is not like eliminating commerce and profits will reduce shortages, corruption and or greed. Things are better in the 21st century
Our world in data - war and violence
It is not like eliminating commerce and profits will reduce shortages, corruption and or greed. Things are better in the 21st century