Druski 's viral NASCAR skit sparked a good ol' fashioned down-home racial debate across America -- totally the type of comedy the world needs, says Brandon T. Jackson . Play video content

Movie buffs remember Brandon's portrayal in the 2008 Ben Stiller -directed comedy blockbuster "Tropic Thunder" as "Alpa Chino" ... the rapper stranded in the jungle who told Robert Downey Jr. 's character -- who was in blackface -- his hijinks weren't appreciated.

TMZ Hip Hop linked with Brandon following the Druski firestorm, and he says canceling Druski would be like canceling RDJ's unforgettable performance in "Tropic Thunder" ... no dice!!!

RDJ stayed in "Black-man" character even when the cameras weren't rolling, according to Brandon, and he may have done the same ... he's patented

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