Existentialists would say that if Donna does not worry about existential concerns but instead focuses on getting a job, obtaining material wealth, or maintaining her friendships, then she will .

She will still not be happy

Explanation:

Existentialism is simply a philosopher's term. They are used when they wants to observe and look into the nature of the human condition as a key philosophical predicament/ problem and who share the view that this said predicament is best solved by ontology.

Existentialism believers holds the view that the world and human/liveforms are meaningless that is they holds no value or meaning except when man gives it value. They believe that the world and all that exists has no valley or intrinsic meaning.