Having said the above, 45% of federal prisoners are drug related.
Admittedly extrapolating from the state numbers/ratios, that would mean approximately 10% are possession only cases.
That number does not comport with my personal experience as opposed to those being convicted of possession with the intent to distribute.
My point being, I suspect the truth is a bit more nuanced, state to state, state to federal, and federal district to federal district, than either “side” is fully conveying.
FWIW/YMMV
https://www.bop.gov/about/statistics...e_offenses.jsp