Civilization predates Capitalism by a few hundred thousand years. Capitalism did not create civilization.
And capitalism is better than systems we had before, like feudalism and slavery. We critiqued and revolted and improved on those, and we can do better than capitalism too.
Capitalism is not the worst we can do, but it's not the best either.
You made some good points, I concede I was being overly reductive. I think you made a great summary of it.
I edited my previous comment to reflect how you changed my mind.