They vastly overestimate what low level gang members make off of drug slinging. They’re arguing that it’s economical to lead a gang and hold territory. Well yeah.
There is a book that is fairly old and potentially outdated called “freakonomics” which includes a chapter basically analysing “if drug dealers make so much money, why do most of them live with their mothers and have a second job at fast food”.
Very interesting read in general
When Canada legalized pot, suddenty every stoner with rich parents opened up a cannabis store, to the point that there were three on every block in some areas. Within 12 months, most were boarded up.