Ill believe this when he actually does it
Last fall he said he was going to designate Mexican carrels as terrorists. It never happened. No follow through.
Instead, he put it on delay:
Trump Says He Will Delay Terrorist Designation for Mexican Cartels
NY Times, dec 6 2020
https://www.google.com/amp/s/www.nytimes.com/2019/12/06/us/trump-drug-cartels-terrorists.amp.html
Because freezing cartel assets would destroy Mexicos economy.