What the joker that wrote this article doesn't realize is metal is in many ways inherently right-wing. If you look at the people in rock and roll that are conservatives, many are metal or at least hard rock:
Sammy Hagar
Alice Cooper
Ted Nugent
Dave Mustaine (recent convert)
Dimebag Darrell, and probably his brother Vinnie Paul
Kid Rock (not metal but influenced by metal)
James Hetfield (anarchist but conservative by his own admission, also an avid hunter)
Yngwie J. Malmsteen at least seems very pro-America
Gene Simmons (liberal but voted for W)
C.C. DeVille
Marilyn Manson
...and all us Metalhead Freepers!
It makes sense that a lot of us metalheads are drawn towards the right wing of politics. Metal rejects vapid pop music and stale aging-hippy rock, both of which tend to embrace liberalism.