“Fair share” or a version thereof has been used many times by politicos over the years. Two components exist: fair and share.
What is purposely left out of this debate is that "work" is irritating toil. Apparently the irritating toil is required of some, and the value produced by the irritating toil becomes a "claim" or "right" which is deserved by others. Stated alternatively, the irritating toil of work producing value, comes complete with a shirking partner, a shirking partner who then takes part of the value and provides none of the effort, and uses such value as a political constituency building exercise. That the abstract something that was somehow divided improperly is then purposely captured by the politico as a value used directly for dependent political constituency building.