My opinion on the CSA and plants.

Do we measure the value of dandelions in a field or trees in a forest like we do cannabis or other similar plants? How do they know that these certain scheduled plants are destined for use or sale as a drug? They are living organisms. The plant doesn't become a drug until either the THC or other similar substance is extracted from it, or someone consumes it with the intent to cure or treat an illness or disease.
Any plant, which contains hundreds or thousands of substances listed as a single substance under the CSA is mislabeled and that makes any targeting of an individual under that false labeling unconstitutional and unlawful.
A substance is a compound separate from any plant material or other compounds. It is singular, not plural. Cannabis, or any other plant for that matter by definition are not substances.