If we follow denier logic, then what they seem to be proposing is censorship.
What they seem to want is state intervention dictating the permissible choices for creative expression as well as what is permissible for academics and thinkers. No novelist, artist, sculptor, film-maker, playwright or musician would ever be allowed to make a piece of art which referred to the Holocaust in any way, lest they offend a tiny handful of troglodytes.
For fear of Clayton Moore and Saggy, no historian, philosopher, sociologist or any other academic would be allowed to write about or teach the Holocaust, and no publisher or university press would be permitted to publish anything on the subject.
All op-ed columnists would be banned from referring to the Holocaust, along presumably with other traumatic historical events, on pain of imprisonment. Newspapers would not be permitted to run any stories about something happening even in another country, even if the press in another country was covering the same story. Obituaries couldn't mention whether someone had survived Auschwitz or not, one presumes.
Heck, even sports players who make crass remarks like this
would presumably have to be punished, for daring to draw attention to the now taboo topic. I mean, at the moment, people shout at them for being stupid, but what Clayton and Saggy seem to want would necessitate the passage of laws banning even the merest mention of the H-word.