I feel like there are three main themes here:
1. The stories of parents separated from their children during zero tolerance.
2. His own childhood and immigration to contrast.
3. The history of all the laws that made zero tolerance a thing that could happen.
It's a great, informative book with a lot of heart. The writing is a little choppy because the history bogs us down a bit but it's interesting and necessary to the book. 🌟🌟🌟🌟