...cater to anime fans and libertarian ideas which inevitably leads to paedophilia apologia.
I'm not sure I understand how anime + libertarianism -> paedophilia. Also, what's wrong with paedophilia? And don't just say "child rape" because that's a problem with nonconsent. And don't just say that children can't consent, they can. And don't just say that children's consent can't be informed, it can. Informed consent requires only that the consenter has a complete understanding of that to which he is consenting. There is nothing about the length of time for which one has been alive which determines the ability to be informed. Besides being informed, it is also necessary that he have the maturity to properly evaluate his options and choose the one which is in his best interest. This, also, is not determined by age. Further, a less popular aspect of anti- age-of-consent, is that there are many persons who are above the "age of consent", who are not sufficiently mature, in that they do not become informed about that to which they consent, or do not evaluate the options, or do not choose an option which is in their best interest. They are over the "age of consent", yet their consent is not informed.
The argument that paedophiles just want to manipulate malleable minds does not hold, because there are plenty people who are at least the "age of consent", whose minds are at least as malleable as children's minds.