I'll address your links but first of all one of the prosecutors in South Florida that gave Epstein a sweetheart plea deal ended up as Trump's Labor Secretary.
Alexander Acosta - Wikipedia
Now about your links. The first one isn't about Democrats not prosectuing people for pedophilia or their crimes against children. It's about a changing of the sex registry which is something you get put on
after conviction. Personally I don't think they go far enough. Once you pay your debt to society I think that should be it. You shouldn't be made to have to go around and tell your neighbors about your past. To me that feels like a violation of your freedom of speech and privacy. That seems like government compelling speech. Criminal records are public records for anyone inclined to look on their own behalf.
The other links are about making an intellectual distinction between people who are attracted to kids through no fault of their own and pedophiles who are the people who actually act on that attraction and harm children. What's your problem with that?