For someone who has better insight into this --> What is the expected path towards legalization of marijuana (from a bureaucratic point of view?)
Seems like quite the legal reach to say that, because the USDA permits it, THC is totally legal. More like I expect we'd get inequal enforcement and conflict and the CSA + DEA will probably win it.
However, pure THC has been descheduled (regardless where it has been derived from?).
If Marijuana were a schedule II through RX only drug, the manufacturers could write off their expenses, and it'd be much easier for banks to handle marijuana money.