Who knew?

http://www.nytimes.com/2011/01/19/us/19gays.html?pagewanted=all

The tone of the article is quite favorable to the idea of gay parenting. It provides the following information and hypotheses:

Black or Latino gay couples are twice as likely as whites to be raising children, according to Mr. Gates, who used data from a Census Bureau sampling known as the American Community Survey. They are also more likely than their white counterparts to be struggling economically.

Experts offer theories for the pattern. A large number of gay couples, possibly a majority, entered into their current relationship after first having children with partners in heterosexual relationships, Mr. Gates said. That seemed to be the case for many blacks and Latinos in Jacksonville, for whom church disapproval weighed heavily.

“People grew up in church, so a lot of us lived in shame,” said Darlene Maffett, 43, a Jacksonville resident, who had two children in eight years of marriage before coming out in 2002. “What did we do? We wandered around lost. We married men, and then couldn’t understand why every night we had a headache.”

Moreover, gay men who have children do so an average of three years earlier than heterosexual men, census data shows, Mr. Gates said. At the same time, there are fewer white women of childbearing age nationally, according to demographers, while the number of minority women of childbearing age is expanding.

While you say you will leave it to others as to speculate why, I struggle to even come up with a hypothesis that makes sense.