And how would that work out exactly? What would his party do if he tried to pack up and leave? What would his military do? He has their support because he's an important figurehead (by virtue of his bloodline alone) and acts within the interests of those holding him in power.
If KJU tried to "go rogue" (especially if it meant betraying his own country) he'd be dead within a heartbeat. Accidents happen.
Sadly, for the sake of the world, we need to let KJU go unpunished.
Let him live out his days in a cushy mansion in China so that he doesn't start lobbing nukes everywhere.
I believe that to be the sanest course of action.