i dont see how the private ownership of the means of production inherently kills.

By denying it to all others at all costs.
If I need some food, crapitalism says I have to first be exploited for my labor, and if my labor has no value in the market then I can just starve.

Granny needs her lawn mowed.
She can't do it, she is 80.
You agree to do it for $3.
Granny can make and market a dress for $3.
Aren't you proud?
You made granny get a job, rather than helping the old lady out.

Im all for voluntary cooperation but in my experience people want money for their time, not future promises

Well, I don't know how more immediate we can make it than next Tuesday.
On any given Tuesday we can switch paradigms and everything is free from that point on, all we have to do is convince the workers to keep going to work, and/or become ones ourselves.

The folks between 20 and 50 can carry this world, and all it's consumptions, on a work week of about 20 hours with a lifetime cap at 20,000 hours.
https://theanarchistlibrary.org/library/petr-kropotkin-the-conquest-of-bread