Not to worry, we're working on decriminalizing it in the States as well. Just think how little violence there'd be if we just manufactured the drugs (legally) here.
decriminalization != legalization
all the criminal infrastructure and the ills that go with it don't go away after decriminalization alone, but it does at least offer some protection to the end user.
ideally, it needs to eventually be properly legalized and regulated so it can be produced, transported and sold legally while (also ideally) being taxed along the way.