What changes does the author believe have control in society to make it teens lose their place?

Depression, Stress and lack of motivation.

Explanation:

Society is a disease. It control the mind especially the teenagers who are too desperate and   vulnerable to understand what it is doing to them. society takes all chances. When teens have depression which causes stress can lead teen into violence, abuse behaviour with alcohol and drugs. Lack of motivation can make teen to feel unworthy (feelling unworthiness).  

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.