Libertarians can, of course, just come out and say that they prefer contract rights to guarantees of freedom.
No one is paying any attention to me in this debate, But I wrote,
Just be careful about assuming that there must be a perfect option.
Once you assume that there is something that might be called guaranteed freedom, then you can make any alternative sound evil. But to me, guaranteed freedom sounds like something that does not exist anywhere. Indeed, it sounds like an oxymoron.
If Holbo or one of his colleagues were to pay attention to me, I would ask him to spell out the concept of "guarantees of freedom." Spell out what they are in theory and how they work in practice.
Meanwhile, for an example of a discussion that does the opposite of assuming a perfect option, see Will Wilkinson, summarizing David Schmidtz.