Meaning of “tear sth apart” - Learner’s Dictionary

tear sth apart

phrasal verb with tear uk us /teər/ verb (past tense tore, past participle torn)
FIGHT/ARGUE

to make a group of people argue or fight with each other:

The country was torn apart by 12 years of civil war.
DESTROY

to destroy something:

The building was torn apart by the bomb blast.

(Definition of “tear sth apart” from the Cambridge Learner’s Dictionary © Cambridge University Press)