Well a major publication did mention 'Former Nazi" as part of the draw to this story, no, so I don't think his point can be dismissed as protection. I think it far more likely he was warning or suggesting to you to consider is that whatever it is in the psyche of people that prompts them to mention former Nazi, or former whatever-bad-thing, is there to add credibility to something that may not warrant it. I would chose, then myself, to thank him for that kind of heads up but to mention also that calling something Nazi behavior that meets the standards of Nazi behavior is a valid way to describe it. That way we can shift from the dangers of stereotyping now agreed on and move on to whether it is beyond that a valid characterization.
To describe a thing as what it is is just a valid description or isn't if the description is off target.
In my admittedly worthless opinion Fox News is a criminal Nazi like organization that uses our rights to free speech against us. We have a failure of system if the system itself can be used to destroy it. For that reason I personally would like Fox News to experience what it attempts to do to the nation, to cancel our democratic system by having it undergo canceled use of the public bandwidth. They need to be taken off the air and hauled into court for sedition and aid and comfort to foreign enemies. I think we need a dose of Democratic Joseph McCarthyism. It's time to show that the fact we create what we fear is a two way street. I am tired of eating cake.
Ignoble, Fucker, and Hand-job should be at the top of the list.