My conspiracy theory:
A foreign government, friendly to the USA, used Epstein and his house and his island as a honeypot to bring powerful perverts and film/video them for blackmail. This is similar to what was alleged to be behind Hugh Hefner and the Playboy mansions, but the funding source/controller was our CIA and the targets were members of the media (remnants of Operation Mockingbird).
The Left probably feels if Epstein had been sentenced to life in federal prison, none of the D elite (Our Faves) would have been ensnared past his incarceration date.
That is why they are so angry at Secretary of Labor and former Federal Prosecutor Acosta.
IMHO.