We should have a command to vote villagers off the island for whatever reason. Almost no one has died from sickness except when I go to sleep with the setting on 2x speed. They only die from old age and it's a LOOONG wait. We could sent them off on a raft to explore and they never return

You could always poison them with a stew if you are feeling heartless enough.
There is, in fact, an event that has a group of villagers building a boat and disappearing.