The answer with the incoming Congress is clear. It’s all about the zillionaires.

And if Republicans are worried about long-term budget deficits, a reasonable concern, why are they insistent on two steps that nonpartisan economists say would worsen the deficits by more than $800 billion over a decade — cutting taxes for the most opulent, and repealing health care reform? What other programs would they cut to make up the lost $800 billion in revenue?

In weighing these issues, let’s remember that backdrop of America’s rising inequality.

In the past, many of us acquiesced in discomfiting levels of inequality because we perceived a tradeoff between equity and economic growth. But there’s evidence that the levels of inequality we’ve now reached may actually suppress growth. A drop of inequality lubricates economic growth, but too much may gum it up.