http://youtu.be/SFLU1jw5uEA
Yeah, I watched that, too. Nice to know I'm not the only one here who's interested in libertarianism.
If you did not provide a means for the modern cave man to vicariously beat another (cave or otherwise) man's brains in, then he might soon be beating your brains in. Sports can satisfy primitive violent urges without the destructive consequences. Charging taxpayers for its costs is much like paying the mafia for "protection".