I haven't missed the point, I'm already actively arguing against it. You're attempting to hand-wave away examples on how capitalism is worse than the systems of exploitation that came before it.
There is nothing inherently different from capitalism, to any prior system, in the context of abuse of human rights, or however you wish to frame that particular problem.
This is entirely reductive and sets you up for a head-in-the-sand defense of capitalism, where you don't have to engage with evidence because golly gee, people are just gonna always be evil and if you sorta squint at history, you can just smear a whole bunch stuff together and pretend that it's basically the same.
This rambling paragraph about "...the problem that has plagued humanity..." is completely incoherent. You fail to even attempt to describe what this problem is, yet then proceed to assign all of our ills to it, before concluding that no solution for it will ever be found. Is it the fabled boogeyman who comes to visit us over and over, turning our best laid plans against us every time? I suspect it is your pessimism for humanity that is the problem in your understanding.
I don't know enough about communism to talk about it, but I've been building a reading list to learn more this year. I do know that there have been serious atrocities committed by Communist forces. I'm sure there are lots of estimates and comparisons on body counts for both isms, but I also think that a number like "hundreds of millions" should have a little more evidence to support it other than vibes.
A simple Google search finds this entry about mass killings under communism. Estimates at the highest are 148 million for all communist regimes combined. I don't think you know enough specifics to speak on this issue. When you bring numbers into a discussion they need to be grounded in something other than your feelings.
Again, I already understand what you're saying, I simply don't accept it. Why didn't you just start with the unbounded market capitalism solves everything approach? Would've made it easier to spot bad faith.