False Equation: Opposing Same-Sex Marriage and Opposing Interracial Marriage

Spot on arguement from Townhall:
The most effective of all morality-based arguments for same-sex marriage, the one that persuades more people than any other argument, is the one that equates opposition to same-sex marriage with the old opposition to interracial marriage.
The argument, repeated so often that it sounds incontestable, is this: Just as parts of American society once had immoral laws that forbade whites and blacks from marrying, so, today, society continues to have immoral laws forbidding men from marrying men and women from marrying women. And just as decent people overthrew the former, decent people must overthrow the latter.
Thanks in large part to widespread higher education -- the higher the educational level, the more one is likely to hold this view -- vast numbers of Americans believe in this equation of sex (gender) and race.
But the equation is false. (read why here)