There's an article online, saying that "[Heavy metal] is not a music of hope, and in no way is it a music of real freedom, because it firmly rejects the possibility of actual change... Heavy metal is a music that resonates with those who feel powerless, dominatedit allows them the experience of responding to, reacting against, triumphing over, and even annihilating the oppressor, without threatening them with any possibility of actual confrontation or real change." You can read the rest and judge for yourself.