Steve Salaita, who had his academic career destroyed by the Israel Lobby, is one of the best writers currently working. His essays of Israeli and US propaganda are a great practical application of Chomsky’s ideas.
Often articulated by deeming leftists and people of color purveyors of “purism,” the grown-up politics motif suggests that aggrieved communities don’t know how power works and are thus unrealistic, immature, or divisive. The motif usually arises in response to rioting (or what pundits deem to be rioting), third-party voting, leftist insurgency, or general recalcitrance. It is a mechanism to discipline people into compliance, with the Democratic Party serving as an entry point to capitalist politics.