The Christian Post:

A same-sex marriage campaign spearheaded by a group calling itself conservative was launched Tuesday in hopes of capitalizing on the growing support for gay marriage among young Americans. Critics argue, however, that there is nothing conservative about supporting same-sex marriage.

The Freedom to Marry group implemented the "Young Conservatives for the Freedom to Marry" campaign on July 10, in which they claim that same-sex marriage "fulfills basic conservative values of responsibility and community, as well as limited government and individual freedom," according to the campaign's news release.

... Brian Brown, president of the National Organization for Marriage, which advocates marriage as being between one man and one woman, argues that same-sex marriage support is not a grassroots movement among true conservatives.

"It's not conservative to want to undermine marriage," Brown told The Washington Times.

"One of the core pillars of conservatism is protecting and uplifting marriage as the union of a man and a woman," Brown continued, adding that all major conservative thinkers, or "the fountainhead of American conservatism," agree upon that belief.

Brown argues that the true purpose of the campaign is to not represent a grassroots conservative movement for same-sex marriage, but rather to "bifurcate religious organizations -- get religious organizations to support redefining marriage -- and also the Republican Party."