Nowadays, we're in a merging process in the western countries. Freedom is leaving, laws are created daily. We're being told what to think, how to live, how to spend our free time and our money. Some bands did great songs against this socialist-communism system that is controlling our mind. Here is a little playlist of metal songs I enjoy listening that still make sense today.
The last one is not metal but, every time I hear Gregory Mannarino 
this song and theses images come in my mind!
I do not own any of content of theses links, I just enjoy them!