Any Libertarian arguments against Anarchy?

[Kasz216]

richardhutnik said:

badgenome said:
Because anarchy can't exist for long. If nature abhors a vacuum, it abhors a power vacuum most of all. That vacuum will quickly be filled by the strongest person with the most guns, and the results will be anything but libertarian.

Where in nature is anything resembling the governments than man come up with?

http://www.newscientist.com/article/dn3248-democracy-beats-despotism-in-the-animal-world.html

Everywhere, sorta.

Animals vote.