Here's the deal ... in the wake of Rogan apologizing for his previous usage of the slur, fans of his are now up in arms over the fact that other famous people in Hollywood have also hurled it with impunity, including Stern ... who infamously did so on his old show.

Stern has also donned blackface in some of these instances -- but one that's making the rounds now is a sketch he did in 1993, where he was mocking the Ted Danson-Whoopi Goldberg incident.

With Stern playing the part of Ted -- and Sherman Hemsley portraying Whoopi -- the former drops the n-word A LOT as he lampoons the real-life event ... and right to the face of two Black people, no less. Indeed, it's pretty damn offensive ... even in the context of a skit.

Now, despite HS addressing this exact moment just a couple years ago -- when he said he regretted the Danson blackface gag, adding he'd grown as a person -- many Rogan defenders are resurfacing this clip again and asking ... well, what about Howard Stern?!?

Of course, they're totally missing the point ... namely, that Stern WAS, in fact, called out and just like JR has now done -- he, too, went on the air to apologize for it ... as there WAS outrage at the time, just like there is right now after people discovered Joe's past use.

There also seems to be a misnomer over the term "canceled" as it pertains to these two -- some seem to think that because Joe is the most recent one to be under the microscope ... he's getting silenced or de-platformed, and that Stern should suffer the same treatment.

The reality, though, is he most certainly isn't being censored. Spotify's made clear they're standing by their man (even though they have erased a ton of those controversial episodes with the n-word) ... and Joe doesn't realistically face cancelation, as it were.