Estimated average state IQ and illegitimacy correlate inversely at a powerful .82. The relationship is likely even more rigorous than that, but the most recent complete and reliable numbers on out-of-wedlock birth rates I've been able to find come from 1998. This further illustrates how right VCU's Professor McDaniels is in suggesting that states (and by extension, the US) would be well served by focusing on strategies to raise the IQ of their populations.
The animus I have for the position held by many affluent leftists and libertarians that all alternative lifestyles are equally desirable stems from the fact that non-traditional lifestyles tend to disproportionately hurt those at the bottom of society. The hostility cosmopolitans with high IQs have for burgher morality is of little direct consequence to those at the top of society. They have the financial and cognitive wherewithal to live lifestyles that the middle class largerly (or used to) shuns. But as natural endowment declines, the ability to live non-traditional lifestyles without sinking into a morass of poverty and destitution declines as well. And without social stigmitization, the propensity for them to do so increases.
Angelina Jolie and Bridget Moynahan may be able to adequately provide for and raise children out of wedlock, and a didactic judgment on their behavior might seem overbearing. But the divas are exceptional. For the vast majority of children whose parents go separate ways, life is a lot rougher than it would otherwise be, with higher rates of poverty, lower levels of parental involvmenet, less discipline and less protection. Portraying Fantasia Barrino as courageous by way of her single parenthood is emblamatic of a larger societal trend in America to proclaim that things are getting better when they're actually getting worse.
When it comes to upholding omertas on IQ, the same type of argument applies. Scarcely anything would do more to raise the lot of those at the bottom of society than to increase the national IQ. Virtually every social pathology is related to low intelligence. The process of upping the US average IQ--encouraging the wealthy to have more children and discouraging those in poverty from having as many--will alleviate the wealth gap. Decreasing underclass immigration will raise the living standards of natives at the bottom. Through moral posturing and consolidating a stable social position at the top, these same high IQ cosmopolitans hurt those at the bottom the most in vitriolically denouncing any attempt at soberly analyzing the interplay between IQ and other phenomena.