The two systems are the once moving nature. Young lion has respect or fear of old lion. He needs to make a decision. Which may or may not end up in violence. Why would you try to play against nature? I for instance prefer living under the NAP.
But when I buy property, after I spend time and energy to earn it, then I might not want to share it, or just with friends and loves once. I paid for it.
Property is the basis of human civilization, not only for real estate. Just about everything.
This is why specialization works.
And capitalism is just the motor that trys to create win-win situations.
"you will own nothing and be happy" does not work.

Capitalism is not "some own a lot"... Then you really should dive into Austrian economics a bit more. Hard money creates wealth for all. Monopolies are very hard to hold on a sound money standard. Unless they build products for the best quality for the cheapest price. But chances are someone finds a more efficient way to produce and gets the advantage. That's why smartphones are more affordable compared to the first once.

That's human development.
It thrives on purpose.
Fiat Money is the problem, not capitalism. Without capitalism people are just.... Soulless Blobs 😅

Bottomline:
Capitalism is true, it just can't thrive in the potential it has with Fiat and taxation, and so called "regulation". As if fiat wasn't bad enough already.
(evidence...50s 60s...golden times)