they kinda are, they are pretty much "they sleep with black guys hahahahaha" like it is abhorrent.
I don't think the structure of the joke is sleeping with black guys= disgusting. More so that these specific celebrities have primarily gone out with black men in the past. It feels much more targeted at slut shaming the Kardashian's then being racist towards black people. But I haven't seen the movie so It could be both.
Supporting its release does not also mean you believe it's a quality film.
I completely agree. It's just the rhetoric behind the Interview debate was "This is a work of art, this deserves to exist regardless of who it offends."