I like the word Voluntaryist / Voluntaryism.
See: https://en.wikipedia.org/wiki/Voluntaryism
And: http://voluntaryist.com/
There's a Podcast, LAVA (Libertarian, Anarcho-capitalist, Voluntaryist, Agorist): http://thelavaflow.com/
Cheers,
~Philo
Ooh. Voluntaryism. I like it. Gracias, amigo.