Do you have a source for that? Everything I can find online puts global CBD industry revenue at less than $10 billion. And that's everything. The only FDA approved use of CBD (treating seizures), I'm sure is only a tiny fraction of that.
In any case, none of that refutes that there is a strong economic incentive for market actors to not fund FDA approval trials since any benefit will be shared by the entire market.
In any case, none of that refutes that there is a strong economic incentive for market actors to not fund FDA approval trials since any benefit will be shared by the entire market.