2.9? Fair enough...!
Unfortunately, there are trolls of all races on imdb. By the way, I looked up some of my favorite films' ratings out of curiosity:
"Do The Right Thing" (7.8)
"Roots" (8.6)
"Malcolm X" (7.7)
"Boyz N The Hood" (7.7)
"On The Waterfront" (8.3)
Then there's "Madea's Witness Protection" which has 2.9. I personally believe it's a fair score.