Actor Kirk Cameron is coming under fire for anti-gay comments he made speaking to CNN host Piers Morgan.

Cameron said during Friday's broadcast of Piers Morgan Tonight that being gay is destructive to society and that he would not be supportive if one of his six sons told him he was gay.

The 41-year-old Cameron came to prominence as a child actor, playing Mike Seaver on the ABC sitcom Growing Pains. More recently, he played Caleb Holt in the 2008 film Fireproof.

He and fellow evangelist Ray Comfort founded the ministry of The Way of the Master.

When Morgan asked, “Do you think homosexuality is a sin?” Cameron answered: “I think it's unnatural, that it's detrimental and ultimately destructive to so many of the foundations of civilization.”

The Gay & Lesbian Alliance Against Defamation (GLAAD) criticized Cameron's remarks.

“In this interview, Kirk Cameron sounds even more dated than his 1980s TV character,” said Herndon Graddick, senior director of programs at GLAAD. “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.”

GLAAD also launched a petition calling on Cameron to “finally grow up.”