How awful, and I agree with your points.
The news blurb that you included in your post reinforces my experience as a paramedic, as I’ve often seen pimps take teenage runaways and force drugs on them until they were addicted, and then use access to drugs as a tool to keep them working as (for all intents and purposes) sex slaves.
Often, these runaways were horribly abused at home, and this abuse is perceived as “normal” . . . and the savvy pimp is very aware of this, and he knows how to exploit this vulnerability to make money from the sex trade.
Forcing drugs on these runaways and deliberately creating addiction are a part of this dynamic.