Since everything is, in the end, connected to everything else it is usually possible to make a case that something novel belongs with the topic that it spun off from.
However, it is still necessary to nip some major departures in the bud. I'm rather confident this is one of those. (And now the discussion of that point is becoming another one.)
Pedophilia is either "obviously" different or not, connected to homosexuality or not. If is is different or not makes no difference to the issue of the harm of homosexuality.
Only if it could be shown that pedophilia is, in some way, linked to homosexuality
and it could be shown that pedophilia is harmful would it be, in any way, on topic.
There seems to be general agreement that it is not linked. In that case the harmfulness is not an issue here. If someone wishes to make a case for it being linked as the harm of homosexuality then, you have a case for it's harmfulness or not as being on topic.