As for Shadow Wolf, he was justifying pedophilia by saying it was natural. Even if he didn't say he approved of it, he implied it very well in his wording.
I don't want to speak for
@Shadow Wolf. She can do fine for herself.
Secular groups say homosexuality must be tolerated and accepted in society because it's natural. By that logic, saying that pedophilia and zoophilia are natural means it must be accepted.
The problem is that people want to say that homosexuality is wrong because it is unnatural. When the "Ancient people claiming to speak for God didn't like homosex, so they put a law into their legal code" argument fails, they trot out the "it's unnatural " argument.
That argument is bogus on multiple levels. For one thing, animals do it sometimes. Not often, and almost always under odd circumstances. For another thing, most immoral behavior is pretty natural. Killing for personal reasons, from food to territory to access to breeding females, is very common instinctive behavior. What is unnatural is putting limits on killing and enforcing them with punishment ranging from incarceration to execution.
Natural behavior is the root of most evil, from rape to theft to murder. Learning to live a moral life is unnatural behavior. Animals don't do that much. Only people do. Our ability to learn that is the main thing that sets us apart from the killer apes we evolved from.
Another "natural" behavior is to reproduce until the carrying capacity of the environment collapses. We human beings are rapidly headed for the Big Die Off. Gay people, and anybody else who doesn't contribute to that, are behaving in the more moral fashion than the people who procreate irresponsibly. I really don't think that ancient people, who didn't even know where babies come from, are any moral authority at all.
Tom