Man...
I'm sorry, but I can't muster the energy to address this at this point since, at a very basic incentives level, I don't think we will agree on even the foundations of the discussion.
In a whole lot of years of studying economics I've debated and talked with marxists at length, particularly being from South America myself where there is still a significant (but increasingly irrelevant) presence in academia. I've never seen the divide be
this large on the basics. You've mentioned that capitalism as we know it has not existed for 400-500 years -- look at actual data for quality of life and life expectancy since that period. Look at the data, look at how people respond to basic incentives.
I look forward to seeing how this will wash out if I just so happen to be colossally wrong, I suppose.
Either way, thanks for answering the questions and engaging