Kirk Cameron, the star of Growing Pains, does an excellent job of reminding Piers that he's imposing his own value judgement when he asks his leading questions.
In fact, when asked about the interview later, Piers praised Kirk for being "honest to what he believed" and "brave" for sticking to his beliefs.
Here's one of their exchanges in the interview:
Morgan: "Some people would say that telling kids that being gay is a sin or getting [gay] married is a sin, that in itself is incredibly destructive and damaging in a country where seven states have legalized it..."
Cameron: "You have to also understand that you yourself are using a standard of morality to say that telling people such-and-such of a behavior is sinful. You're using a standard of morality to make that statement and say that is terribly destructive. So everyone is going to have a standard against..."
Cameron's views are his own and he defends them admirably. Watch the full exchange for yourself:
Cameron defended his comments in a statement to ABC Tuesday:
I should be able to express moral views on social issues, especially those that have been the underpinning of Western civilization for 2,000 years — without being slandered, accused of hate speech, and told from those who preach ‘tolerance’ that I need to either bend my beliefs to their moral standards or be silent when I’m in the public square. -- The Daily Caller