If The Kid from "Whack The Thief" was in Boondocks, he would likely fit in with the main characters, Huey, Riley, and Granddad. He could potentially be involved in one of Huey's politically charged plots or team up with Riley in a misguided attempt to become "gangsta." However, given his penchant for extreme violence and revenge, it's possible that The Kid would clash with Huey's non-violent philosophy and cause some tension within the group. Overall, it would be interesting to see how The Kid's presence would shake up the dynamic of the Boondocks crew.