Noun
destructive criticism (usually uncountable, plural destructive criticisms)
Criticism performed with the intention to harm someone, derogate and destroy someone’s creation, prestige, reputation and self-esteem.
People who avoid all criticism fail. It's destructive criticism we need to avoid, not criticism in all forms. Timothy Ferriss
The most destructive criticism is indifference. E. W. Howe
The most destructive criticism is indifference. American Proverb
The most destructive criticism is indifference. Albanian Proverb