Why couldn't a drug cartel work in Europe like in Mexico or brazil?

Drug cartels in Mexico terrorize and threaten and kill huge numbers of people a day for a variety of reasons and even intimidate the countries armed forces, why doesn't this happen in European countries on a scale like that of Mexico or brazil?
Why couldnt a drug cartel work in Europe like in Mexico or brazil?
Why couldn't a drug cartel work in Europe like in Mexico or brazil?
Post Opinion