Morally I can't bring myself to ever vote for someone willing to legalize opiates for recreational use.

This is a discussion where the science needs to be brought to the front of the conversation on what happens to people brains on various substances. It's one thing to tax marijuana consumers, but given what we already know about the addictive nature of opiates, as PVC has explained, legalizing and taxing seems to be morally bankrupt. They simply have no choice in the matter but to spend all of their money on buying the drug and thus paying the tax. I can't endorse a policy that tramples on their dignity like that.