I'll go with the most obvious one: Injustice. The Vietnam War was an unjust war. The draft was an unjust system unfairly targeting young men, especially of color. The Democratic convention was an unjust system dictated by backroom politics to ensure a system presidential candidate. The way the protests in Chicago were handled by authorities, particularly the police, was entirely unjust. The arrests of the Chicago 7 and Bobby Seale were unjust. The way the trial was managed was unjust, personifed in the demeanor and decisions made by Judge Hoffman. The decision *not* to allow Ramsey Clark's testimony be heard by the jury was unjust. The subsequent guilty verdicts were unjust.

In sum, the whole damn thing as perpetrated by The Powers That Be was unjust.

While there may be some gray area between the philosophies of Tom Hayden and his take on progressive politics and Abbie Hoffman and the Yippies take on the situation, there is a clear delineation in the movie about who stands for justice... and who stands for injustice. That theme plays in every single scene of the script.