Cutting off one's nose to spite one's face
"Cutting off one's nose to spite one's face" is an English-language idiom, used to describe an irrationally self-destructive act taken in pursuit of revenge. The phrase often takes the form of the proverb "Don't cut off your nose to spite your face".
Source: Wikipedia — Cutting off one's nose to spite one's face (CC BY-SA 4.0)