The Gay & Lesbian Alliance Against Defamation, or GLAAD, has hit back at Kirk Cameron, after he made statements on CNN's Piers Morgan Tonight on Friday, saying homosexuality is unnatural and destructive.

In this interview, Kirk Cameron sounds even more dated than his 1980s TV character, Herndon Graddick, senior director of programs at GLAAD, said in a statement. Cameron is out of step with a growing majority of Americans, particularly people of faith who believe that their gay and lesbian brothers and sisters should be loved and accepted based on their character and not condemned because of their sexual orientation.

Cameron, who played the character Mike Seaver on the 1980s TV series Growing Pains, told the host that he thinks homosexuality is unnatural.

I think that it's detrimental and ultimately destructive to so many of the foundations of civilization, Cameron said.

The evangelical Christian also spoke out against gay marriage, saying that marriage is almost as old as dirt and that the tradition was defined in the garden between Adam and Eve.

One man, one woman for life till death do you part, Cameron said. So I would never attempt to try to redefine marriage. And I don't think anyone else should either. So do I support the idea of gay marriage? No, I don't.

Graddick also spoke about Cameron's remarks about gay marriage and said that there is a growing number of states recognizing marriage equality. Graddick also noted that Americans are realizing that marriage is about committed couples making a lifelong promise to care for and be responsible for each other.

He also said that American are seeing that gay and lesbian couples need equal security and legal protections and that that's not 'redefining' anything.

GLAAD said it will be monitoring Cameron's media bookings and other roles with film and television studios so as to ensure the news and entertainment industry is aware of his outrageous anti-gay views.

Maryland recently joined seven other states and Washington D.C., in having laws that allow same-sex couples to wed.

Watch Cameron's interview in the video below: