I think its different here at least as far as I know it about Austrian music. I also know some Bavarian artists who produced very political songs.
Many of them are a consquence out of the experience of the total war, or the ignorance of people or xenophoby.
A very common theme is also showing in either a sarcastic or sublime way where people normally are the hypocrites or the bad sides of our society.
The good thing I think is that most of those singers give a damn about party politics or the current political agenda. Those songs are normally timeless and hardly loose their message even though the decades pass by.
For example this song of the Bavarian song maker Konstantin Wecker:
Vaterland (Fatherland)
...and his son dreams of law and order, and powerful straight steps, and in his imagination he hears them already walking and in his imagination he already walks with them... and the father thinks about the past, and hears the cruel boots marching, and in the imagination he still can hear them, and tomorrow it could happen again...
Sage Nein! (Say no)
Ignore the communist underlining of the video, I could not find a better one, but the sound is authentic.
Its a song not only against nazis, sexists, homophobes etc, but its in first line a song for civil courage.
A more contemporary song (of my favorite band, its cult nothing less), its principally like the song above about civil courage, but it does not say at all, what political view you should follow, just that you should not shy away from also demonstrating for it.
Es ist nicht deine Schuld (Its nor your fault)