It starts with the death penalty after coviction. Human Trafficking of any kind would fall under penalty of death. No exceptions.

A life for a life.

Show the world truth so they can safeguard each other. Use evidence, crime reports, whatever it takes. Keep the details to a public digestible level of course.

Educate the public in a manner in which they will not forget. Remaining vigilant at all times.

Hopefully after a couple years to a decade the sick twisted people will be fully removed.