A growing ideological polarization between men and women spells bad news for marriage as young men are moving slightly right while young women move strongly left and fewer Americans are willing to date or marry across the political aisle.

That’s according to Brad Wilcox of the Institute of Family Studies.

In an article in the Atlantic magazine, he says “Liberal women & conservative men who want to marry face a particular challenge:… there are only 0.6 single liberal young men for each single liberal young woman; likewise, only 0.5 single conservative young women exist for every conservative young man.”

“About 1 in 5 young single adults will have to put a ring on someone outside their ideological tribe—a consequence of the fact that far more single conservative men than conservative single women now exist, as well as far more single liberal women than single liberal men.”

“The sobering future for marriage and family life in America is that greater political polarisation spells trouble for already anemic rates of dating, mating, and marrying,”