@cshentrup there are lots of policies that would benefit more than 70% of the population that 70% of the population don't meaningfully support. a UBI financed by an income tax increment, which i think you don't favor, could be set so that more than 70% come out net ahead. that's not on its own dispositive, politically or as a matter of policy.
@cshentrup the thing about Nash Equilibria is that in the most common case, they are not unique. almost anything can be a Nash Equilibrium, under the right circumstances. https://en.wikipedia.org/wiki/Folk_theorem_(game_theory)