No- that private property rights are consistent with the libertarian quote above because it's voluntary. You can argue what truly voluntarily slavery would lo

No- that private property rights are consistent with the libertarian quote above because it's voluntary. You can argue what truly voluntarily slavery would look like in a modern world, but involuntary chattel slavery is what conflicts with principles of private property. I'd argue things like athletes signing away future percentages of potential earnings (which was a fairly popular idea until the current NCAA name and likeness rules changed) would be one potential version.