The uk has less inequality than the US but middle class (and somewhat poor) Americans can still have better living standards in many ways just by being richer.

The uk has less inequality than the US but middle class (and somewhat poor) Americans can still have better living standards in many ways just by being richer. Reducing inequality may improve median incomes a bit, but growing the economy could have a bigger impact (ideally the growth would benefit people at least reasonably equally in relative terms). Achieving net zero is much easier if you are richer and can therefore spend more on new energy generation, batteries, interconnects, car fleets, etc.