Revenge porn is 99% of the time pictures taken by a significant other during a relationship and then spread after the breakup or taken by the victim themselves and distributed to the significant other for their (ahem) personal use.
Voyeurism and hidden camera shots are illegal in almost every jurisdiction, in fact one of the few that wasn't just changed their law after a guy was acquitted. You are building a straw man talking about these already illegal actions. Much like all the other strawmen in this thread such as child porn and bestiality.
The fact is if the victim took the pictures themselves (or participated in taking them) they own the copyright and can DMCA the pictures and if they are not removed they can sue the pants off the website. If the victim's significant other took the images then they are frankly SOL and should be. They still have the right to sue the website for commercial use of their image and they can still go after the ex-significant other for the action. What they are proposing is using the power of the state and force of the truncheon to enforce what is a civil complaint brought on by their own actions.
The very idea that you could sue Google for someone linking to some website distributing images for which they have the legal right from the copyright holder is absurd on the face. Putting loopholes like this into the first amendment is going to lead to more loopholes like anti-bullying and hate speech exceptions and pretty soon you won't have free speech anymore. These revenge porn sites can already be prosecuted (in most cases) for blatant fraud and blackmail. In fact many of them already are.
The simple answer here is that if you don't want naked pictures of you on the internet don't take naked pictures.