It is an economic imperative to break the vicious cycle of a widening class gap in family structure — and more generally, a high share of one-parent homes outside all but the most highly educated groups in society.

That won’t be easy to do. For decades, academics, journalists and advocates have taken a “live and let live” view of family structure. Mostly this reflects a well-intentioned effort to avoid stigmatizing single mothers and to promote acceptance and respect for different family arrangements. But benign intentions have obscured the uncomfortable reality that children do better when they are raised in two-parent homes.

The result is the widespread normalization of one-parent homes outside the college- educated class and woefully little public support for programs aimed at strengthening families. Only 1 percent of the budget of the federal Administration for Children and Families is allocated to “promoting safe and stable families,” as compared to, for example, 15 percent for foster care.

On the other side of the issue, there are people inclined to blame single mothers for having or raising children outside of marriage. But it is not helpful to blame or shame women who are faced with the difficult choice between parenting alone or living with a partner who is an economic or emotional drain on the family. Surely we as a society can openly recognize the advantages of a two-parent home for children and offer a variety of kinds of support to couples who struggle to achieve a stable two-parent family arrangement without stigmatizing single parents and their children. Crucially, we need to bolster parents’ own capacity to thrive and be reliable providers for themselves and their children — including fathers, who were often left out of the conversation.

The issue is complicated, and solutions will necessarily be multifaceted. Just as scholars, journalists and policymakers acknowledge the need to improve schools and debate various reform ideas, those of us who discuss and debate questions of society and policy should be frank about the advantages of a healthy two-parent home for children and challenge ourselves to come up with ways to promote and support that institution.

We need to work more to understand why so many American parents are raising their children without a second parent in the home, and we must find effective ways to strengthen families in order to increase the share of children raised in healthy, stable two-parent homes. Doing so will improve the well-being of millions of children, help close class gaps and create a stronger society for us all.

Melissa S. Kearney is an economics professor at the University of Maryland and author of the forthcoming book “The Two-Parent Privilege: How Americans Stopped Getting Married and Started Falling Behind.”

Source photographs by eyenigelen and Jasenka Arbanas/Getty Images

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