> As it should. If it weren't for capitalism we would not enjoy any of the abundance we have become accustomed to having in the past century.

That argument can't be directly applied to the future. Just because a system worked in the past, doesn't mean that it will work in a future world with different constraints. Hence why many think that today's capitalism is not a good political model for the envisioned future of mass automation.

And of course we can't hold on to an idea out of reverence and respect, i.e. "be grateful for what it has done for you, you privileged first-world dweller, you".