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.”
If we’re needlessly overthinking, I must point out that by rejecting a call to reduce global inequality because you suspect it doesn’t go far enough…you’re siding with / helping the people who DON’T want to reduce global inequality.
That’s a fair criticism. I don’t really have a better answer to the situation at hand. I think it’s just important to keep in mind that this is why were in this situation to begin with.