If Giannis were to request a trade after another poor season, the Warriors would have the salaries and draft capital to make it possible.
As it stands, it's viable, but it's a safe bet that Kuminga would be asked for as well. It's probably a tougher decision to make. The reason is that it would depend a lot on Kuminga's salary aspirations fitting in with the roster. He could perfectly contend for the championship with Curry, Giannis, Kuminga, Green and Poz, but there's the possibility that LeBron could join Curry and Giannis after reaching another milestone as the first player to have his son play in NBA history.
This would be crazy, but wasn't it when no one was expecting Durant to sign with the Warriors after losing to them? I'm just saying we never know what's going on in the shadows. I don't think LeBron would just go to a champion team, but going to an ambitious franchise where their big star is willing to share the spotlight and come in with a third big star is familiar territory for LeBron. It's the same scenario he experienced in Miami with Wade and Boch.
I know the Warriors can find a way to keep Kuminga and turn this into a wet dream with a starting five of Giannis, Kuminga, Lebron, Curry and Poz. If this could be done I wouldn't mind sending Draymond out. It would be the most versatile, aggressive and deep shooting unit in the entire league. At the same time you keep a deep bench with Jackson-Davis, Hields, Anderson, Melton and others.