The next sentence in the original post (#66) was:
Gay unions have no history, no value to society or civilization. -NutCrackerBoy
The number of children who will grow up in a home where the parents are gay is miniscule (hopefully). Gay unions would not be providing any of the significant benefit I alluded to in my 3000-year civilizing influence statement.
Neither did unions between blacks and whites but we stopped making that illegal. I see no value in continuing to keep this illegal. Children are a separate issue. I think they are better off in straight married households but why should you deny gays the right to marry based on that?