The number of Americans enrolled in Medicaid has increased from 29 million in 1990 to 73 million today — an increase of 252 percent over a period when the nation’s population increased 30 percent.

Total spending on Medicaid today is $574 billion, 275 percent above the $209 billion of 2000.

Medicaid amounts to about 40 percent of the total spending on the 10 largest means-tested federal government programs targeted at low-income Americans. According to the Congressional Budget Office, spending on these programs has tripled as a percentage of our GDP over the last 40 years.

Does all this mean we are becoming a more fair and compassionate nation?

That might have been the intention. But if we honestly look at what is happening, we will see things have gone badly astray.

Some perspective on this is available in a new article by Harvard University economist Edward Glaeser in the City Journal magazine of the Manhattan Institute.

According to Glaeser, 95 percent of “prime-age” men were working in 1967. However, during the last recession, over 20 percent of this group was not working.

“Thirty percent of prime-age jobless men currently live with their parents,” Glaeser reports.

One reason why we’re not seeing robust growth in our economy despite today’s low unemployment rate is that the low rate reflects large numbers of workers who have dropped out of the work force.

Recent data from the Bureau of Labor Statistics show that 62.7 percent of the workforce is working, compared to 66 percent in 2000. According to Nicholas Eberstadt of the American Enterprise Institute, if work rates today were what they were in 2000, there would be 10 million more Americans earning salaries.

What is happening? Why are droves of Americans, particularly “prime-age” men, dropping out of the work force?

Glaeser offers a number of hypotheses. But major in this equation is the dramatic growth of the American welfare state. The welfare state might have been driven by good and compassionate intentions. But to a large and destructive extent, it has subsidized and encouraged not working.

Which brings us back to Medicaid.

Eberstadt writes, “According to the Census Bureau’s SIPP survey (Survey of Income and Program Participation), as of 2013, one fifth (21 percent) of all civilian men between 25 and 55 years of age were Medicaid beneficiaries. For prime-age people not in the work force, the share was over half (53 percent).”

Eberstadt notes a 2016 study by Princeton economist Alan Krueger, former chairman of the council of economic advisors under President Obama, that “nearly half of all prime working-age labor force dropouts — an army now totaling roughly 7 million men — currently take pain-medication on a daily basis.”

Medicaid is footing the bill for a good chunk of the opioid epidemic.

And Eberstadt adds: “Of the entire un-working prime-age male Anglo population in 2013, nearly three fifths (57 percent) were reportedly collecting disability benefits from one or more government disability programs.”

We must be a compassionate nation as well as a productive nation.

But compassion cannot be confused with subsidization of poor values and waste.