During World War Two the federal government begged my grandfather and other farmers to grow hemp as witnessed by the government film, "Hemp For Victory." Now, if we grow hemp our farms will be siezed by the federal government and we will be jailed. 

I have been complaining about our corrupt governmment since I was a teenager. There is absolutely no reason to make it so hard to legally grow hemp. 

"Hemp allows illegal marijuana growers to disguise their crop amongst the hemp."
That is the standard line. I could teach law enforcement how to identify "illegal" cannabis in a matter of minutes. I could teach regular people in seconds.
Hemp and all cannabis are made up of male and female plants. When growing hemp it does not matter if the plants are male or female. The male plants pollinate the female plants and create seeds.
"Illegal" cannabis would be rendered useless by all the pollination from the hemp. It would be completely infested with seeds and therefore useless to cannabis users.