I do see the difference, I just happen to fancy my chances better under the system where the government imposes a stockpile tax than the system which leaves it up to the market -- even more so when, as I've mentioned in other posts, it's not about stockpiling, but about maintaining self-sufficiency in the face of an alternative that is more "efficient" economically.

Regarding your second paragraph, and completely independently, how do you propose we reach a libertarian society from the position we are now?