I have been reading along for updates on this debacle. This situation got so ugly so fast and it’s hard to see a positive ending to this for anyone.
In terms of the copyright issue being used to punish Disney, it is not a matter of what federal legislators do to Disney, it’s if they choose not to do anything. The Steamboat Willie iteration of Mickey’s copyright should have expired more than once already, but Disney repeatedly lobbied politicians to write new legislation or extend legislation allowing them (and other creatives) to retain copyrights longer. The politicians on both sides went along with it.
Steamboat Willie Mickey’s copyright expires in less than two years, and either 1998’s Sonny Bono Copyright Term Extension Act (which amended the previous copyright law pertaining to Mickey) has to be changed again in some way or an entirely new law has to be passed for Disney to retain that copyright.
If Congress does absolutely nothing and says “Nope, sorry, not helping you out again,” Disney loses the copyright, but retains the copyright to later iterations of Mickey (presumably including versions like Sorcerer Mickey) until their time is also up. Snow White will face the same problem next decade. I somehow doubt Chapek even thought of any of this.