How will Zihuatanejo be affected.

There is no point of regulating Fentanyl it’s really just poison.

And fentanyl is just the beginning. Fentanyl is 50 times stronger than heroin. There are already designer drugs that are 10 to 100 times stronger than fentanyl.

The point of regulating recreational drugs such as fentanyl is that you will take the profit motive away from the cartels and their suppliers. The problem of addiction isn't going to go away. The Greeks figured that one out 2,500 years ago. As Rob pointed out, the drugs go north from Mexico, the cash and guns go south, and the cartels get stronger each year. By taking away their cash cow, we will reduce their influence and power substantially. Sadly, as some others have pointed out, the cartels have diversified their business operations and it may be far too late to eradicate them from society.

Mexican Gangs are becoming criminal conglomerates - The Economist

Fast Facts: How Cartels Are Diversifying in Mexico - ASIS International

Added benefits: Regulating and supplying addicts with these drugs will reduce the epidemic of overdose deaths. It is also vastly cheaper than continual funding of the middle-class welfare programs known as the DEA and for-profit prisons.