It appears we are too far apart in our usage of terms that this discourse cannot prosper in this forum.
I say, however, that in it’s current usage Pareto optimal is used to mean the best possible constrained outcome for every segment of society. This is it’s usage in the financial economics literature. I would hope that you would personally be interested in solutions in society that place everyone in the best possible constrained outcomes.
For illustration, shareholders want higher returns, workers want higher pay. Pareto optimal outcome? Establish minimum returns on capital for shareholders. Establish minimum wages and appropriate pay scales. Give shareholders the larger share of any surplus, and let workers share in the surplus with bonuses and stock options.
I call it a capitalist solution. You perhaps say it is a mixture. Let’s call it semantics and agree it is a good solution.