Actually they will..from a short supply.
No one can prove the short-supply of illicit drugs being a product of the border being closed. I know they talk about it. But there’s not enough proof to sustain that.
Now, if the State Department does deliver the investigation results over making the drug cartels into terrorist organizations, and puts them on the terror list....to hunt down via the US military, then I would agree with you...drug prices will escalate (more than triple) within a one-year period. That will be the more fascinating thing to occur, even out-ranking the building of the wall.