I emphasize the word 'sanc***y'. If you believe that marriage outside of a church means less people will believe in the 'holiness' of marriage, then civil marriages for ****sexuals will have no greater impact than any other.
Words like 'sanc***y and 'holiness' should be reserved for religious ceromonies. Churches frequently refuse to marry divorcees, members of other faiths, as well as same-sex couples. That won't change.