If local currencies were so fantastic, then in a world where they weren't regulated, everyone would start using local currency, and eventually it would devolve into city- (or even district-) states.

It's an idea which on a very small scale can benefit one local economy at the expense of others around it, but on a large scale it would be economically crippling, since it's basically ultra-protectionism on a very low level.

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If you remove the English army tomorrow and hoist the green flag over Dublin Castle, unless you set about the organisation of the Socialist Republic your efforts would be in vain.[...]

It would be tantamount to a public declaration that our oppressors had so far succeeded in inoculating us with their perverted conceptions of justice and morality that we had finally decided to accept those conceptions as our own, and no longer needed an alien army to force them upon us.