In Unwind by Neal Shusterman, what could you argue in an argumentative paper?
One way that I think that you could go with an argumentative essay is to talk about the pro-life and pro-choice debate. The entire reason that the people in the book allow unwinding in the first place is because they felt it is a nice middle ground between allowing abortion or outlawing abortion. A parent must give birth to the child, which satisfied the pro-life camp. But between a certain age range, the parents could retroactively abort the child through the unwinding process. That arrangement satisfied the pro-choice camp. People didn't think of unwinding as murder, because 100% of the unwound individual would be harvested for organ and tissue donation. You could could write your argumentative essay in favor of pro-life, pro-choice, pro-unwinding, or anti-unwinding.
You could also write the argumentative paper about the author. You might write your essay that argues Shusterman is pro-organ donation or anti-organ donation.