This is a well put together and thought-provoking piece. I am glad you found the time to share it. It seems as if your moral conscience prevailed reluctantly over the predetermined success you might have garnered as a stereotype in a trope inspired by motivated ignorance.
There is much to be said about the false narratives and depictions of American life and or strife on screen. As a propaganda device though, that has capitalistic implications — affording much sought after social capital, it is indicative of another aspect that many have not seriously contemplated.
The creators of The Boondocks are brilliant satirists. They create allusions to many delusions of our existential selves. The Ann Coulter bit, however is really just satire on a liberal stream of consciousness that cast aspersions on her and the like, while benefitting from the discourse and challenges we face in a democracy predicated on a nation of immigrants — this is where the theory part is applicable. The goal of the creators were to subvert both ideologies — liberal and conservative and the institutions involved.
Whether Ann Coulter believes her own lies or not is irrelevant, it is what society rewards and thus punishes that really matter in particular. I see correlations of this aberrant incentivizing with the presuppositions that you have written about here also to much of your chagrin and fortitude in spite of it all.