Opponents of same-sex marriage also ask:
If homosexual, why not cousins? Why not brothers and sisters? Why not multiple partners?
Why allow homos but not cousins to marry?
Until you fight for cousins’ rights to marriage - which are specifically banned - you aren’t truly about “being fair” or “open”. You’re in it only for yourselves/homos.
Cousin marriage is a bad analogy.
First cousins may legally marry with no restrictions in the following states: Alabama, Alaska, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Maryland, Massachusetts, New Jersey, New Mexico, New York, North Carolina, Rhode Island, South Carolina, Tennessee, Vermont, and Virginia.
Arizona, Illinois, Indiana, Maine, Utah, and Wisconsin allow first cousins to marry under certain circumstances.
The rest of the states have prohibited it. However, as far as I know, none of them refuse to recognize as valid cousin marriages that were performed in the states where it is legal.