It's very unlikely that the different crime would be as rewarding financially.
The current situation results in huge flows of money into criminal organizations to the point where it destabilizes governments and funds massive corruption. Particularly in South and Central America.
One of the major items in the current news is the flood of children from central america into the US. What is the root cause of this? The flow of money from the US to drug cartels in their countries of origin.
Fix the drug problem in the United States and the flood of drug money to these criminals will dry up. It's very unlikely they will be able to find anything nearly as lucrative.