The problem with art and politics is that too often the political message becomes a hammer to be used on the head. This not only dates a lot of political art, but dehumanizes the characters who carry the story and thus the message.
That's why, for me, art is better when it's deeply personal and spreads out from there.
Politics can provide the circumstances, but as the world shows, everything changes.
And as a lot of political art shows, start with an agenda and you bore from moment one.
(Edward Bond's work is a good example of the personal story being more potent than the directly political - SAVED is terrific, feels personal, clearly written from sharp observation; his later work about people pulling together to weather river floods and crony-ism bore me as the characters are flavorless shills for ideas. Only broad satire - a la SF MIME TROUPE and SNL sketch work - really escapes this for me.)
BUT... Here's a movie where the humanity of the story transcends the political issues - and yet couldn't exist without the politics.
Beautiful. Terrifyingly human. Can't stop watching it in my head.
Go see it.
THE LIVES OF OTHERS.
It'll make you remember what art is for.