You sound like Woody Harrelson.
Woody Harrelson is an idiot.But on the issue of hemp,He is pushing in the right direction.
The decision to ban hemp was made as a result of $$$$$$,Not science.
If all the present uses of nylon had been realized at the time of it's release.They never would have banned hemp.
But at the time,It's only use was to replace hemp fiber.After the ban on hemp,linseed oil (drying type oil) was used to replace the hemp oil that was no longer available.
For more info read the book "The Emporer Wears No Clothes" by Jack Herer
The Emporer wears no Clothes