I am in favor of people not mixing alcohol and guns, yes. But I didn't say I was in favor of marijuana prohibition, so your conclusion does not follow at all from what I said.
> ... a drunk gun user is far, far more dangerous than a high one.
Source? I could argue that, due to pot still being illegal most places, there are more people drunk than there are high. One would expect therefore that there are more gun mishaps involving drunks than people who are high. If you know of any reasonably rigorous studies that get down to rates per capita per episode of getting drunk/high, I'd be interested in a reference.
I think we agree on this, though: If you are going to drink or get high, stay away from guns. If you're going to have guns, stay away from booze and pot...