If you'd read a bit of history you'd know that this is how Zeta was born, one of the worst cartels to exist. Also, how do you "not worry about law enforcement angle"? What does that even mean, that you just decide not to follow laws anymore? Also, hundreds of thousands have died already, mostly cartels killing each other. Special forces killing hundreds or thousands or even tens of thousands wouldn't change a thing.
I know a lot about the history of drug cartels. How much do you know about how the US and Columbia worked together to destroy the cartels in Columbia, and decrease production of cocaine by 72%. Here the problem is the Mexican government admitting that they are on the verge of losing control of their own nation.
The neat thing about technology is how much damage you can do at choke points in production and supply.
China produces most of the base product for Fentanyl production in Mexico, then ships it to Mexico where it is made into either capsules or other means for transportation across the Southern Border. I would use naval forces to interdict ships containing Fentanyl raw goods for production in Mexico, international law proscribes such shipments, so the US Navy has international law on their side to stop such ships, and investigate their contents for such items.
I would place all known cartel members and individuals who associate with them on a list of narco-terrorists, I would make their arrest if they enter the US regardless of whether or not they have any nation's ambassadorial imprimatur.
Then I would use a lot of the current means the USAF has to obtain SIGINT to determine locations of production and shipment in Mexico and interdict those on the ground in Mexico. Next I would continuously vary border entry to the US with high concentrations of random searches, and the use of high end spectroscopy techniques. I would go so far as to limit travel across the border to lower numbers, so that more detailed searches occur on every vehicle possible. I would increase the amount of spectroscopy evaluations on each train and cargo shipment. I would fingerprint every person crossing the border.
I would build the wall entirely, and disallow as much entry illegally as possible, with the requirement that all those who do enter with refugee status remain in holding areas until they have passed the court appearances they are required to accomplish. If there isn't enough judges to deal with numbers then those who did not first apply in Mexico and are from other nations other than Mexico, and who did not comply with UN regulations,by applying for registration as a refugee in the first nations they entered, are returned to those nations. Any who are not supplying valid refugee requirements would automatically be returned.
This is because the cartels use the overloading of the border services to increase their shipments of drugs, and you can't stop the drug trafficking if you don't get control of the border.
I don't believe in giving sentences for recreational users, however for addicts, I do believe that they should be required to go to detoxification/addiction facilities. I believe that individuals who are in possession of drugs like cocaine, heroin, meth, fentanyl and other opioids, and other class 1 drugs, in
drug dealer quantities should be sentenced
and serve the entire required sentencing.
The DEA needs to have in-depth restructuring.