[monochromatic]

> Indentured labour was also the result of a "voluntary agreement between individuals". See also the working conditions of migrant workers in the Gulf states - again the result of "voluntary agreement between individuals".

The only problem I have with such things is when someone agrees to one thing, but winds up with something else. That probably happened at least some of the time with indentured labor.

> It's the utility-minimizing choice for the rest.

You usually can't maximize utility for every single person. Maximizing total utility is the standard, and you haven't explained why we shouldn't do that here. "Won't somebody think of the ~~children~~ poor riders?"