Paedophilia in a legal sense is a matter of definition and can easily be redefined by courts. Once/if the age of consent is lowered, then it is no longer legally paedophilia but acts between persons of consenting age. Other definitions are being successfully challenged and changed, so this should not be unexpected.
As a mental disorder, this can also be redefined by matter of a vote or decision by a professional body. Again, this has happened with other sexual behaviors which were once considered deviant.
True - I suppose I am assuming that the 'legal age' issue at 12 (say) is a kind of stalking horse by this group or else the lowest they can morally expect to get away with. They wouldn't stand on a platform of 6 years old for example.
Personally I have no problem with 12 as an age of consent as such - depending on the individuals. And that is the issue, not all 12 year olds are the same in terms of development.
My concern is not with that, there must be an age at which the 'age of consent' cannot logically apply and paedophiles have been known to extend their activities into this range. A recent case for example in the UK concerned a 6-month old baby that was raped.