getting inspired by @tehn citation of Italo Calvino, I feel I would like to share my view on this.
As a South Italian, emigrated to UK, I have felt the same kind of disullusion for a political moment long time ago.
As I am old enough to having be part of the "biggest cultural revolution in a western country after second world war" (please watch this movie: https://en.wikipedia.org/wiki/Videocracy_(film)) and having been on the forefront of G8 in Genova, I can tell you what is about living under the rule (yes I use this word on purpose) of a tycoon who do not really care about people.
I am talking about Berlusconi of course
My view, to be reduced for the purpose of this forum, is that when you make the people very poor, when they do not share the profits of capitalism and liberism, when they see the elite getting fat (there are many movies on the past Italian political history, check Elio Petri, Il divo by Sorrentino, Nanni Moretti and so on), there are two ways to cope with it:
Socialism or getting a leader who is part of their culture.
Berlusconi was this leader and was the symbol of the "self-made man" to which everyone looked as a symbol of their wishful thinking.
I am not an expert in American Politics or UK politics, but what has happened lately is very similar...people getting poorer, the neo liberism cannot cope with this, let's gettign rid of the neo-liberist figures...Clinton was this neo liberism candidate,,,,the establishment, in my view.
Same issue with Brexit...people have been given lies and believed in them because there was nothing else to believe in.
All the politicians involved in this three political disasters are all indecent, lawless, xenophobic, narcisists people...all very rich and misoginists.
It is extremely bizarre to see how the champions of freedom against the nazism are turning the other way around and the once nazi nation is instead the symbol of freedom and multiculturalism (at least acceptance of diversity).
My two pence.
And as someone mentioned music as political protest, this guardian article is very interesting:
Also I remember a talk during the Occupy London campaign, during which the discussion went onto the arts as vehicle of political protest and someone in the audience was talking about an american politician (sorry I do not remember the name and I am not able to find reference) that said that it was easy to destroy political protest in arts...just make them superstars, or at least give them money, a label contract a nice house and a world tour....