In "Seattle Was A Riot", the artist who wrote this song was trying to protest that he didn't have the rights that he wanted. it is clear that he is fighting for his rights because it says so in the song "We'll fight for our RIGHTS". Although we know he is fighting for his rights we don't know what rights.
The artist also believes that someone is trying to control what they learn.

Since the dawn of history -- the few who own control
Have bent and rewrote history, how they want it to go
They try to control what we learn, and take away our rights
Cause when the masses 'round the world unite, that's a force they can
not fight!!!
We'll fight for our... (x3)
We'll fight for our RIGHTS!!!

Conclusion: I think that this song strait forwardly expresses the artits opinion. however I do not think that the song is a good protest song because i think that there are better ways of protesting your beliefs.