That's the point - in the US, everyone has the right to marry:
someone of the opposite sex
someone who is not a close blood relative (and some parts of Mississippi....hehehe)
Someone of the legal age to consent
EVERYONE has that right. Allowing males to marry males, women to marry women, heck - how about Woman to Mule??? - would be an ADDITIONAL special (ugh -hate that word) rights based on a chosen trait.
"would be an ADDITIONAL special (ugh -hate that word) rights based on a chosen trait. "
Why don't you like that term?
and should it matter if the trait is chosen or not? There are lots of things that we don't choose that still should not be the basis of extra rights.. (is extra better than special?)