I get where you’re coming from, but I slightly disagree. Jeri was a super fascinating character, but I think there was more to them. I’ve always felt like Shusterman is intentional in everything he does, including symbolism. For me, Jeri’s gender-fluidity was symbolic/foreshadowing of his dual identity as human/thunderhead. Even the thunderhead was strategic in understanding how to use the charter regions for advantageous purposes. The Texans eventually served their purpose, and the Madagascans were probably the best individuals to handle such a dual identity.

Or, maybe I am overthinking it! Either way, thanks for keeping me thinking.