There is no gender equality right in the US Constitution. A man has the exclusive right to marry a woman and a woman has the exclusive right to marry a man; that keeps gender diversity.Here is the only argument needed: Equal rights. A man has the right to marry a woman, a woman should have that same right.
A woman has the right to marry a man, a man should have that same right.
There is no rational argument against gay marriage, your selfish whining that you don't want the law to change isn't a good argument.
Gender Segregation Unions
XX + XX
XY + XY
Gender Diverse Unions
XX + XY
Government has a vital interest in the next generation of taxpayers.