Are conservative wives the happiest in America? No and yes. Conservative wives who are not religious ➡️ *least* likely to be happy. Conservative wives who are religious ➡️ "most" likely to be happy.
A look at the General Social Survey (2010-2018) shows a similar curve in the relationship between religion, gender ideology, and wives’ reports of being “very happy” in their marriages.
The J-Curve is really about the fascinating interaction between religion and gender ideology when it comes to the quality of women’s relationships. 
Some critics thought the focus of our Op-ed in The Times was political ideology. Not so. The J-Curve is really about fascinating interaction between religion & gender ideology when it comes to the quality of women’s relationships. 
Some critics thought the primary focus of our NYT oped was political ideology. Not so. "The J-Curve is really about the fascinating interaction between religion and gender ideology when it comes to the quality of women’s relationships." See below 👇🏽
See, for instance, the association between women's marital happiness and shared religious attendance in this figure: