Are rightards obsessed with black cocks because of their political stance, or did they acquire this political stance because of their fetish?
I think both are true. As has been pointed out before, Blacked porn is simply a politicized version of "ogre X elf," so I think the bourgeoisie (or whoever you blame for all the troubles) is promoting BBC porn to turn chronically online porn-addicted incels into the most powerful internet warriors.
convergent evolution
I think that the (((rightoids))) are just scared over "racemixing", fearing that it would end the "white race"