Show me your friends and i will tell you who you are - what the hell is going on in Germany?

Germany, a country whose minister of justice and censorship gives gushing thanks to a extreme leftist band named "Feine Sahne Fischfilet" (transl. "creamy fish filet"). A band known for great lyrics (sic) such as

"Germany sucks - Germany is shit! Give me a "like" against Germany! (...) Just die, Germany, that would be great!"

(Facebook post by Heiko Maas:
Great demonstration against xenophobia and racism. Thank you Anklam. Thank you to Feine Sahne Fischfilet, Andreas Frege, Marteria and all others!)

The Journal SPIEGEL states the following about the band: "All current members of thee band are known to be extreme leftists. Some of them are additionally on record for violation of the public peace and criminal assault and battery", according to the Meckelnburg-Vorpommern's ministry of the interior.
The band uses its popularity to win its audience "for extreme leftist purposes".
http://www.spiegel.de/panorama/feine-sahne-fischfilet-im-verfassungsschutzbericht-mecklenburg-vorpommern-a-864974.html

Do we really need to know more about this man and the so-called "fight against right"?

From a report of the protection of the constitution, 2012:

"...the band's relationship with violence is also evident in that the members of the band have been associated with politically motivated violent offenses and sanctimoniously downplay nonviolence."
http://www.verfassungsschutz-mv.de/cms2/Verfassungsschutz_prod/Verfassungsschutz/content_downloads/Verfassungsschutzberichte/VSB_2012_140526.pdf

Vielen Dank an @katedee für die Übersetzung. :-)