Plenty of kids appear to have survived horrific orphanage experiences, growing up abused, and a complete lack of love. I'm yet to hear of one that made it without food.
Plenty of kids appear to have committed suicide due to such experiences. This is a very literal example of "survivorship bias" :-)
How many survived with zero food?
I can agree that "complete lack of love" is rather hard to define, but are you sure that it's just a coincidence, when an abused, humiliated, tortured person commits suicide?
I'm thinking of Harlow's monkey studies in particular - there's some evidence that (macaque) infants will choose comfort over food. Certainly food is more directly tied to life, but Maslow's structure carries a lot less weight if people will seek higher tiers even when they lack the basic elements of survival.