In France, you can marry live stock, the dead and inanimate objects.
Although Superman is not married at the moment, surely aliens marrying human beings is a million times worse than gay humans marrying each other because it's technically bestiality... Which is probably why black people in America were not allowed to get married (to each other) until 1896, because it was publically and conventionally believed that they did not have souls, or at least "real" souls, and inter-racial marriage, which would create children with mixed souls, was not legally permitted until 1967.
(There were a hell of a lot more ehtnicities than just black and white back then (or always) which has me wondering if Native Americans might not have been allowed to Mary the Japanese and when that legally changed?)
The klan wear hoods for a reason.
They are wussies.