For one thing, the war on poverty has, in fact, achieved quite a lot. It’s true that the standard measure of poverty hasn’t fallen much. But this measure doesn’t include the value of crucial public programs like food stamps and the earned-income tax credit. Once these programs are taken into account, the data show a significant decline in poverty, and a much larger decline in extreme poverty. Other evidence also points to a big improvement in the lives of America’s poor: lower-income Americans are much healthier and better-nourished than they were in the 1960s.

Furthermore, there is strong evidence that antipoverty programs have long-term benefits, both to their recipients and to the nation as a whole. For example, children who had access to food stamps were healthier and had higher incomes in later life than people who didn’t.

And if progress against poverty has nonetheless been disappointingly slow — which it has — blame rests not with the poor but with a changing labor market, one that no longer offers good wages to ordinary workers. Wages used to rise along with worker productivity, but that linkage ended around 1980. The bottom third of the American work force has seen little or no rise in inflation-adjusted wages since the early 1970s; the bottom third of male workers has experienced a sharp wage decline. This wage stagnation, not social decay, is the reason poverty has proved so hard to eradicate.

Or to put it a different way, the problem of poverty has become part of the broader problem of rising income inequality, of an economy in which all the fruits of growth seem to go to a small elite, leaving everyone else behind.

So how should we respond to this reality?

The conservative position, essentially, is that we shouldn’t respond. Conservatives are committed to the view that government is always the problem, never the solution; they treat every beneficiary of a safety-net program as if he or she were “a Cadillac-driving welfare queen.” And why not? After all, for decades their position was a political winner, because middle-class Americans saw “welfare” as something that Those People got but they didn’t.