In the 20th century governments slaughtered wholesale around 100 million of their own citizens (China, Russia, Cambodia), let alone those of other countries they killed in war. There's no measure by which the market comes anywhere near that amount of murder.
The market (german industrialists in case of Hitler, military-industrial complex in case of USA, East India Company in case of GB if you want to go deeper in history) has its quite significant share. Ignoring that is being willfully ideologically blind.
In the 20th century governments slaughtered wholesale around 100 million of their own citizens (China, Russia, Cambodia), let alone those of other countries they killed in war. There's no measure by which the market comes anywhere near that amount of murder.