A lot of folks who embrace #whitesupremacy also venerate survivalism. Survivalism is practiced the world over by folks of every creed and color though, so why do so many WS go nuts for it?
Some reasons are:
1) Many WS myths concern the apocalypse or collapse of society; both averting it and bringing it about.
2) They consider it a sign of traditional masculinity
3) Strong tendency to revere and escape into a golden past that never existed
4) To practice killing and killing-related skills
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it allows them to justify their violence and brutality by clothing it in "the masculine".
terrified of their same sex attractions, perhaps, so blame the ones who attract.
typical, men do that to justify rape (violence) all the time.