Bhagavad Gita 1.40

1.40. In the destruction of a family, the immemorial religious rites of that family perish; on the destruction of spirituality, impiety, indeed, overcomes the whole family.

When irreligion is prominent in the family, O Kṛṣṇa, the women of the family become polluted, and from the degradation of womanhood, O descendant of Vṛṣṇi, comes unwanted progeny.