I think that if you really are devoted to getting it legalized there is only one way to really do it. This is an idea that ive heard said a couple times but never in any seriousness. If someone was truly dedicated they could get several thousand marijuana seeds and travel across the country just planting them in every forest. If this was done over several years weed could be growing everywhere. If done correctly then weed could never be erradicated from america and the government would be forced to legalize it.