First we've got to lift the laws that make it next to impossible to grow industrial hemp in the United States, and considering we're the only developed nation that fails to cultivate industrial hemp as an economic crop that could take a while. Industrial hemp does more good than harm, and all because of the evil weed pot its probably never going to be grown in the US anytime soon. :P

As for pushing for cannabis farming, your just insuring it'll never happen. One weed at a time, and most importantly the one that has no effects on your state of mind and practical uses to boot.