It would have been helpful to know more details regarding what your essay was to present or explain or what you wrote for your introduction.
The community in which Jonas and the Receiver live made a conscious choice to adopt Sameness.
Our people made that choice, the choice to go to Sameness. Before my time, before the previous time, back and back and back. We relinquished color when we relinquished sunshine and did away with difference. We gained control of many things. But we had to let go of others.
Your essay could explore the ramifications of such a choice and how living in such a setting would impact your life. How would you feel if your life's work had already been determined by someone else - would it be reassuring or would it be frustrating?
Your essay could examine how society would be changed if communities in the real world today tried to adopt Sameness. How would relations between countries change, for better or for worse? Or would such an action even be possible?
There are numerous other possible approaches you could pursue.