First, being pedophile and being a rapist are still different things, second there is a difference between the stance on child porn (and I would assume this is talking more about manga stuff, not real rape videos of actual human beings) and being pedophile. One is a horrible sexual orientation and I fel bad for anyone who is pedophile, because it basically comes down to suppressing your sexual desires your whole life or being a criminal. One is a criminal act that should justly be punished and that often but not exclusively gets commited by pedophile persons. But one that also does not get commited by all pedophile persons. Lastly, the stance on child porn, or at least the variant where no person was harmed personally (i.e. animations, writing, comics, paintings) is a personal political opinion that shouldn't have an influence on a job.
Even if you associate negative feelings with a term (in this case pedophilia or child porn) you should always stay rational, because you will almost assuredly act unfairly if you don't. Do you feel someone like Rapp, who allegedly is of the opinion certain types of child pornography in other societies should not be criminalised, cannot do her job properly anymore, independent of what it is, and should be gravely punished? Do you feel that someone who is pedophile but never has acted on it and continues to fight his sex drive should be punished for who he is? Independent of the fact that he is a law-abiding person? And just to make this clear: Obviously, pedophile persons should not work at schools, kindergardens or similar work places. But let's say a pedophile worked in Nintendo marketing (again, not claiming Rapp is one, there is absolutely NO indication she is!), I could not care less. And neither should you.