I understand that such a position basically strips away all human dignity and reduces everything to a "might is right" argument, but is that not very much true in many ways? We agree on the freedoms we want to have protected and are more lax about those less important.
Yes this is a ridiculous example and yes there are many examples where explicitly negotiating terms is not necessary. When this is, and when it not, is a cultural thing. I mean I shake hands with a woman without second thought, an Islamic Imam may need some special compensation before agreeing to it.
I'm pushing this discussion to the edge because it feels extremely significant to me. Pushing it over my own boundaries also is a way of testing my premises. I'm certainly willing to change my mind.
Few French people don't know this proverb. It surprised me when I noticed US citizens were much less cognizant of it. Maybe because Freedom is praised so highly we cannot even acknowledge its fundamental limitations?
If someone is at liberty to kill you, your freedom to live peacefully might be severely limited. If someone has the freedom to spread lies about you, your freedom to preserve your own reputation might be severely limited. And so on.