Take a look at the picture of this fork.
With one prong broken is it now unusable? Should it be immediately discarded because it’s not perfect anymore? Can it used to feed yourself?
I ask you to consider some things.
Is someone ”unusable” when they have a broken leg?
How about a broken arm?
How about a missing arm?
A missing leg?
Eyes that don’t see anymore?
Ears that don’t hear?