I'm sure this has been discussed numerous times before, but it's always fun to have an anarcho-capitalist/minarchist debate. Since you support an extremely minimized state whose only functions are the preservation of life, liberty, and property (in affect, a Randian-style police/military/courts government) then you must also support public police departments, fire departments, court systems, and a national defense. How do such things get funded if taxation, by its very nature, is in violation of the non-aggression principle?