This situation has split up the family.

此事使这个家庭的成员分道扬镳了。

《柯林斯英汉双解大词典》

Arguments with relatives may lead to a split in the family. Avoid any confrontations with colleagues.

但和亲人的争执可能产生家庭关系的裂痕，另外也要避免和同事的正面冲突。

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After his family split, Osama's mother took him to live with her new husband, Muhammad al-Attas.

家庭破裂以后，奥萨马的母亲带着他与她的新任丈夫Muhammad al - Attas一起生活。

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Having separated parents can be stressful What if I have a split family?

BBC: CBBC Newsround | COPING WITH CHRISTMAS | What if I have a split family?

Assets: The family's 75% of Merck KGaA is split among nearly 100 family members.

FORBES: Europe

While they might know that too many truancies and absences could land them in court, they're often more fearful that a parent could be deemed incapacitated and the family split up.

CNN: Help for a 'hidden population' of caregiving kids