And I think the whole attempt to paint CSA as just another possibly acceptable "sexual orientation" is dangerously NAMBLA-like.
Berlin says in the interview that sexual activity between an adult and a child is wrong and harmful, so I do not think he is making the same argument as NAMBLA beyond saying that some people are born being attracted to children.
The NAMBLA line was that their "boy-loving" did no harm to children--it was "society's" response that harmed the children.
Well, there may be something to that. We know that people generally accept the situation they grow up in as the norm. It is possible that in a society that condones adults having sex with children that the child would be less likely to find what happened to them harmful, especially if there were also social norms governing what behavior was acceptable. We can see that in ancient Greece, Rome and Japan.
That said, we know from current examples of subcultures like polygamist groups that have sex with children that simply having a social norm does not take away a child's fear and confusion. We also know that the child's consent tends not to matter in most of those cases. So while society's response make a bad situation worse, there is still no way a child can cope with or would actually freely consent to sex with an adult.
Also, calling CSA (even with a fancy Greek name) just another "orientation" is a calumny on others who are struggling against prejudice towards their sexual orientations.
I think calling it an orientation can be misleading in this case because we do not do the same thing with other age groups. No one says that someone attracted to older people has a sexual orientation to them. However, I think the word "orientation" is useful to the extent that tells people we are talking about the way a person was born.