How did Gamzee disease that universe??

He used chucklevoodoo to create the harlequin puppet to haunt John’s dreams which caused him to draw Harlequins on him wall which made Dad think John liked harlequins and got him that big one which John would prototype and then the Black Queen made everyone wear harlequin hates which prompted Jack to kill her, take the ring, and eventually become Bec Noir the unbeatable opponent that started the Reckoning early and fucked up the trolls.