These tiresome ideological ping-pong battles, trading the death-counts and horrors attributable to simplistic labels of economic systems are useful only to remind less fanatical observers that said horrors are not innate or exclusive to any particular system or label, and that the primary issues are (a) scarcity of resources and (b) the brutality of nature, with everything else just being a case of humans trying desperately to cope with these grim realities.

Everyone can play the game of saying everything horrific in the past or today is directly attributable to the economic system that they oppose and that their opponents advocate, and we can even go further and play tricks like this: "Nazism was really a left-wing system in nature". See, it's great fun.

Ultimately it's pointless though; it doesn't persuade anyone to think differently about anything, and serves only to make the writer feel righteous, without needing to go to the effort of formulating and advocating something genuinely better and workable for the future.