Let’s set aside the jokes, the vs, the action, (and yes, even DBZA) to talk about…
Mr. Popo. This man went through tough shit. He spent hundreds of years under Kami, who died because Piccolo died. Yes Kami came back, for four years. Then Piccolo came and they fused, with Piccolo being the primary vessel. He lost both his master as well as his friend. We know he didn’t take up the mantle of “god of Earth” and constantly missed Kami during the seven years of peace.
How do you think Popo felt when Piccolo and Kami became one again and Kami was lost for good? What do you think he feels when he looks at Piccolo? At Dende?