Brian Brown, the president of the National Organization for Marriage (NOM), on Friday denounced the Boy Scouts of America's (BSA) recent decision to drop its ban on openly gay youth.

At its annual gathering on Thursday outside Dallas, Texas, 61 percent of the roughly 1,400 volunteer leaders from scouting's 270 councils approved a proposal put forth by the BSA to end its ban on openly gay scouts. The resolution, which takes effect January 1, keeps in place a ban on gay adults.

The move comes more than a decade after the organization won its Supreme Court case allowing it to exclude gay scouts and leaders.

Brown, who heads the nation's most vociferous group opposed to gay marriage, predicted in a statement that the decision would lead to the organization's “sexualization” and eventual “collapse.”

“Today is a sad day for the Boy Scouts of America,” Brown said. “They have succumbed to political pressure and abandoned their historic roots in what will prove to be a failed attempt to appease gay activists and corporate donors. Unfortunately, what they have done is said to the world that their oath no longer means much. Their decision to admit openly gay scouts will end up sexualizing the organization.”

“I am certain that having changed their policy on homosexuality, it's only a matter of time before courts order them to admit homosexual scout leaders. Meanwhile, countless thousands of churches will very likely pull their sponsorship rather than endorse homosexuality, and the entire organization will begin to collapse. All of this is happening not because of a true grassroots demand of gay youth to be part of the organization but by an orchestrated political effort by gay activists who want to punish any group or organization that does not embrace homosexuality. It's the beginning of the end for what once was one of America's noblest organizations.”'s Zack Ford responded that NOM's involvement in the issue “reflects how the group works against LGBT people, not for marriage.”

(Related: Gay rights foes declare Boy Scouts dead.)