> Why do you think a social contract implies softness? For most of it's existence the social contract allowed slavery, ritual killing in the form of warfare and duels, and it still allows the death penalty in much of the world.

I think they are saying that the words "social contract" sound more collaborative and voluntary (to them) than what the phrase actually refers to. Your examples would only reinforce that view.

It is a subjective stance on a coined phrase, but given most of our laws were settled by people not living now, and enforced on people not living when the laws were created, and there is no periodic process of ensuring laws reflect the living, the words "social" and "contract" are being stretched quite a bit.

(On the other hand, the meanings of most phrases drift from the nominal meanings of their constituent words.)