It sounds like Jim Carrey needs to branch out of his own internal world and conflicts.
You can hear his dark thoughts blurted out in every single interaction with another human, both when acting and when being interviewed. He seems mentally exhausted and confused with the conversations he's had in his own head, and uses detachment from others as a coping tool to ignore other possible narratives.
Maybe this is the blessing and curse of being an actor, you aren't always 'acting'.