I’m for the changes, but I’m skeptical about whether anything can be accomplished. If the SC changes aren’t done as an amendment, they’ll be subject to SC review. Getting anything past either of those bars seems nigh impossible.
Similarly, if the SC rules that presidential immunity is implied in the constitution, they could also block that without an amendment.
Maybe the plan isn’t to succeed but just to establish a record that Republican lawmakers are good with a supreme executive and corrupt courts, but I sort of feel like they’ve all but said that aloud anyway.
ETA:
But while we’re on the subject of changing things, I wonder about after an 18 year term is up, if there would be any use for a sort of Justice Emeritus who doesn’t get a vote, but can write concurring/dissenting opinions and maybe serve in either an advisory or ethics review capacity. So keep the lifetime appointment with all the advantages of that, but allow for the actual sitting court to change more over time. I don’t know; I haven’t really fleshed out the idea because it’s a pipe dream at this point.