The letter says: “We know that high inequality undermines all our social and environmental goals. It corrodes our politics, destroys trust, hamstrings our collective economic prosperity and weakens multilateralism. We also know that without a sharp reduction in inequality, the twin goals of ending poverty and preventing climate breakdown will be in clear conflict.”
Just going to point out that “the market” is people’s freedom of choice compounded across society.
It’s almost like political parties are tied to the values of their voters.