The thing is its only the copyrights of individual artists and creators that will die to this.
The big corpos will find a way to protect their value, just you wait.
They will steal from every single creative in the world and then sue them to hell and back if they use anything they them selves “own”
This is not a threat to the copyrights that you want to die.
Or its compatible with joycons but you cannot connect them to the sides (new cons or constantly connected controls?)
The hybrid device route was so successful I doubt they will abandon it.