The majority of the land used for cattle grazing is not suitable for farmland.
But why should land be treated in that binary? How much biodiversity is being destroyed just to keep cattle or some other animals instead of keeping it in its natural state?
Never tried raisins, but I imagine it could be pretty tasty if well done.
There are a lot of dishes where you put dried fruit in otherwise savoury meals (I think especially middle eastern or like slavic Plov)