The Effects of Marriage, Civil Union, and Domestic Partnership Laws on the Health and Well-being of Children -- Pawelski et al. 118 (1): 349 -- Pediatrics
He has proven that single parent households are at a significant disadvantage to two parent households. He made the claim, unsupported, that this is due to losing one gender or the other. What he didn't take into account was that two parent homes often have double the income as single parent households, and can often provide twice as much time looking after a child as single parent households. Those factors go much further in providing for children than the gender of a parent. Of course, it seem you are just as statistically ignorant if you couldn't gather that much.He has proven beyond a reasonable doubt that households without a mother and father have a negative effect on the child. Study after study proves that.