[ClearCase_guy]

Fallacy of the excluded middle is a common name for it:

From wikipedia:

The logical fallacy of false dilemma—also known as falsified dilemma, fallacy of the excluded middle, black and white thinking, false dichotomy, false correlative, either/or dilemma or bifurcation—involves a situation in which two alternative points of view are held to be the only options, when in reality there exist one or more other options which have not been considered.

[Shimmer128]

Thank you so much.