Yes voluntary interactions and liberty are viable.
You shouldn't assume and dismiss things that you aren't familiar with and don't understand.
There are countless books and articles written on the subject. Many available for free here
https://mises.org/"Abolishing slavery sounds nice on paper but as things exist today, you really think thats viable? I would guess the answer is no so taking that into account, any real ideas or just pie in the sky?" -Brian_D's ancestor in the 1800s
Without slavery, Who will pick the cotton?