Honestly, I am not sure if profit from bitcoin is higher than those you have mentioned above. Whether bitcoin has higher or lower profit than any of those, the fact that bitcoin is legal will make it better among any of them.
Definitely, no point of risking your life while you have another way that could comply with the laws and regulations.
Being targetted as a criminal itself enough to make me get away from all those kind of business.
i can say like this, the drug dealer gets the profit from selling their stuff and then they invest their money by buying bitcoin in one price and after they wait for some period, bitcoin price is increase so they selling their bitcoin to gain more profit. i think if they do this, then they income will be bigger and they can make money from two ways. i think if people can do this then i am sure that they will make bigger profit in future so they can double their money amount in the end.
I assume this is an advice to encourage people doing illegal activities or to be said criminalities right? That's just ridiculous