disunite

verb [vt. 及物动词]vt. 不和；使分离

When the contradictions such as the centripetal force of consanguinity, the disunite of the property, the scope and necessity of family were violent, the big family was threatened.
当血缘关系的向心力与财产经济的离心力矛盾、家庭规模与供养需要矛盾剧烈时，大家庭存在即受威胁。