The actor also said during an appearance on "Piers Morgan Tonight" that he does not "support the idea of gay marriage."
Former Growing Pains star Kirk Cameron is taking heat from GLAAD after remarks made on CNN's Piers Morgan Tonight.
During Friday's interview, Cameron called homosexuality "unnatural" and "destructive."
"I think that it's unnatural. I think that it's detrimental and ultimately destructive to so many of the foundations of civilization," the actor, who played Mike Seaver on the 1980s TV series, said on the program.