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I've been thinking about the parallel between U9 Kami and the speech Goku made after the Cell saga. On both universes their presence was what changed the history of Earth. Goku is the reason Raditz came in the first place, but Kami made the Dragon balls that the invaders seek. Or more directly, the androids being creates to defeat Kami this time.

This makes me think that Kami knows he is somewhat responsible of these hard times, and perhaps thinks he isn't fit for the role of Earth's protector after all. Perhaps when they revive him, he'll ask to be teleported to Namek and learn under Guru to be a better guardian while also not interfering with Earth's destiny. But this is just my theory