My reading of the article was aggressive response by single payer healthcare (i.e. NHS) is responsible so that would be almost impossible politically in USA as long as senate exists on top of non scientific medical authorities.

Care to elaborate?

What has RFK Jr specifically said for/against HepC?

Honestly, Mehmet Oz deserves more of the blame here. He and the other people who are fighting to make healthcare expensive and inaccessible create situations where people aren't being diagnosed and cured of Hep C, which leaves them passing the infection to others through sexual contact, sharing needles, etc.

RFK Jr. is an anti-vax crackpot, but Hep C isn't vaccine-preventable. On the other hand, we can absolutely blame RFK Jr. for our rising Hep A, B, and D rates.