An Earth Without Goku

BEFORE YOU READ THIS COMIC:

This is a copy-paste fancomic inspired by the great fan comic Dragon Ball Multiverse. What would have happened if Goku had never arrived on our planet? What would have happened if the superpowered main protagonist had never existed? How would humans have managed? This is not canon for Multiverse but an independent story where I try to answer the mother of all questions: "What if Goku never came to Earth?"
I invite you to discover these and many other questions in my story.
The events narrated below are inspired by Dragon Ball, an original work by the mangaka Akira Toriyama.