I could care less about pot smokers as long as:
1. They were disqualified for ALL welfare and assistance. If they want to burn out their brain and become unemployable because they can't remember anything, go for it. But I'm not paying for them with tax dollars. They can expire in the gutter.
2. A test needs to be developed that works like a breathalyzer. Driving under the influence of pot is instant license revocation. I don't want to be rear-ended because someone with the munchies going to get snacks is too "relaxed" to notice that they're coming up on my tail at a stop light.
So sure. Legalize it. But if you use it, you're disqualified for all taxpayer assistance, disqualified from unemployment if fired due to lack of performance, and if you drive within 24 hours, you lose your license permanently. Fair?