Its economy is booming. It’s not like there aren’t other jobs, or tax revenue. The main problem is that they are ideally situated up against the largest drug market in the world: the US. Until people in the US stop wanting drugs, this will continue. In large part, the US is content to let it continue, because it keeps the underworld activity mostly outside our borders. However it’s gone a bit far, with the cartels virtually taking over the entire country, and contributing to a refugee crisis of epic proportions.
The only solution is for the US to decriminalize drugs and take the entire industry legitimate. It’s well underway with marijuana. The issue is that there are way worse drugs involved now. Meth, fentanyl, and worse. Those aren’t so easy to legalize as weed, which is pretty harmless.