Not only is "same-sex marriage" a logical impossibility; it is a threat, not to marriage, but to liberty.
Soft-minded and sloppy-thinking academics, lawyers and judges harbor the silly notion that but for the fact of discrimination, we'd be proportionately distributed by race across incomes, education, occupations and other outcomes. There is absolutely no evidence anywhere, at any time, that proportionality is the norm anywhere on earth.
Many ideas presented as "new" are just rehashes of old ideas that have been tried before — and have failed before. So it is no surprise that the recent "Growth and Opportunity Project" report to the Republican National Committee is a classic example of what previous generations called "Me too" Republicanism.