Ight so I was kinda hoping for more candidates other than TobyThePug to chime in with their thoughts before giving mine.
But I promised to reveal the “answer,” sooooo, here it goes
In a “true” free-speech country, the decision would be entirely up to the newspaper. If the newspaper wants to decline the ad, it can. The government cannot compel the newspaper to speak on the Nazi’s behalf. Nor would the government be able to force the newspaper to not run the ad. Nor would the government be able to prevent the Nazi from setting up his own newspaper to espouse his views.
So, the “free speech vs. hate speech” debate ultimately comes down to a question of publisher values. If you are in some way responsible for the content put out by a newspaper or some other platform (be it a meme site or a meme stream, hint hint), you can’t duck taking a side on this, ultimately.
And where I personally land on this question is not running the pro-Hitler ad: because it has the near-certainty of hijacking and poisoning and derailing all the other beneficial content put out by the newspaper. It’s in both the newspaper’s and the community’s interest not to feature that kind of hateful content.