Capitalism is about private ownership of the means of production

You make something, you get to keep it. It's not that crazy.

It's relatively new, in the terms of human civilization, as previously land was tied to noble title, or simple tradition, and outside of noble estates, most land existed as 'commons'. If you built a house on a plot in the commons that no one was using, the plot was yours. If you mixed your blood with the soil, the output was yours. If you moved off and never returned, it belonged to the next guy to come along and take up stewardship of the land. The idea of absentee ownership was pretty alien up until the last few centuries

In which society? There have been many societies with many traditions

And then came the beginnings of capitalism, and the primary change that heralded it was those commons being parceled up and fenced off until there was no where for the average person to exist. The net result is that you no longer owned the fruits of your labor, just a share of them. With fences cam the commodification of every level of the system, and rent-seeking behavior went rampant.

The concept of owning land or a business and having others work on that land or work for that business has existed for a very, very long time. See the following quote about Ancient Egypt (circa 3100 BC)

Farmers made their living from their crops in a number of ways. Private landowners could do as they wished with their fields and livestock. Most farmers, though, worked on land owned by others. They tended the fields and typically gave most of what they grew to the farm owner. They were allowed to keep a small amount for themselves. Agriculture was primarily done by men, but women and children often kept small family gardens.

Trade and markets predated the advent of capitalist systems by tens of thousands of years. You suggest this system is natural and basic, but tell one of your ancient ancestors that in your time you would pay half of all you produce to a nameless group of owners existing a thousand miles away who you've never seen, and that no matter how much or how long you paid, the only thing you'd have to show for it was slowly increasing rent, and he'd wonder what despotic warlord had conquered your lands, not congratulate you for your freedom.

See the previous quote, systems like this have existed for thousands of years

At the most basic, cooperation, not competition, is natural for humans. This system that pits us against each other, encourages us to lie, cheat, and steal in an effort to hoard resources far in excess of what we could ever hope to use in a hundred lifetimes is anything but natural.

Both competition and cooperation are natural. In the early days of our species homo sapiens competed with all other hominids and came out on top. In tribal societies there is constant conflict over land. As populations grow and territories start to overlap there is tribal warfare. It was the only solution to overpopulation before the discovery of farming and the ability to support much larger populations.

Lying, cheating, and stealing are not side effects of any particular economic system, they're side effects of a successful society. And society that prospers will attract parasites that cause it to degrade over time. Parasitic personality traits have always existed in human nature, but they can only thrive in a large society, a small society would never accept it or be able to survive with more than a few parasitic people.

Note also how I'm not downvoting your posts just because I disagree with you. Please pay me the same respect.