so do you think this might be the cause,
Medical Uses Known in the 1930s USA
Pain Relief: Cannabis was recognized for its analgesic properties. It was used to relieve pain associated with various conditions, including migraines, menstrual cramps, and chronic pain.
Antiemetic: It was used to treat nausea and vomiting, particularly in patients suffering from illnesses such as cancer.
Appetite Stimulation: Cannabis was known to stimulate appetite, which was beneficial for patients with wasting syndromes or those undergoing treatments like chemotherapy.
Antispasmodic: It was used to alleviate muscle spasms and was prescribed for conditions like multiple sclerosis and epilepsy.
Sedative: Cannabis was used for its sedative properties to help with insomnia and anxiety.
Cotton Industry
The cotton industry perceived hemp as a direct competitor. Hemp fibers were used in making textiles and other products that cotton also served. The production of hemp required fewer pesticides and was more versatile in its uses compared to cotton. Thus, the cotton industry had a vested interest in diminishing hemp's popularity to protect its market share.
Pulp and Paper Industry
Similarly, the pulp and paper industry viewed hemp as a significant threat. Hemp is an excellent source of pulp for paper production, requiring fewer chemicals to process compared to wood pulp. Leading figures in the pulp industry, such as William Randolph Hearst, who owned vast timberlands and paper mills, allegedly supported the prohibition of hemp to eliminate competition and protect their investments in timber.