Jack Dorsey, who is now defending Elon Musk, in 2021. Joe Raedle/Getty ImagesIn a new interview, Jack Dorsey explained Elon Musk's seemingly chaotic decisions at X.The mass layoffs, advertiser exodus, and blue-check revamp fit into a push for free speech, Dorsey said.It's all part of ditching Twitter's "core, critical sin" of advertiser control, he said.Elon Musk's handling of Twitter has been panned as erratic.