Ways same-sex marriage will affect heterosexual marriage

This is a challenge article.If you think that there is evidence for the topic of the page, please present it here. You'll be the first.

Here is a comprehensive list of the ways that allowing same-sex marriage will negatively impact upon heterosexual marriage, the religious sanctity of marriage, or traditional "family values":

But seriously...[edit]

See our analysis of arguments for and against same-sex marriage.