Capitalism has in all likelihood intentionally killed waaay more people than Communism

we live under the deadlier of the two systems

What are you talking about? You started with comparing capitalism and "communism", two horrible systems with large kill counts (which you are even using for comparing them). And I am denying the other even was communism, since Soviet Union and China under CCP have both been more close to dictatorships, than the people actually owning their state. They have been as communist as Nazi Germany was socialist - only in name.
And I am the one saying it is pointless, which one is worse, since they are just slightly different flavors of exploitation. It is like arguing about which rotten apple is more rotten, instead of trying to pick fresh ones.