Answer:
I am a desire to munch
I'm the source of all emotion but I'm caged in a white prison.
I have a name written on me, but it isnβt my name. Men plant me, but I never grow. They look at me and see their future, rotting in my bloom.
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
Better touch me before you proceed to second. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.