Bhagavad Gita 1.41

अधर्माभिभवात्कृष्ण प्रदुष्यन्ति कुलस्त्रियः।स्त्रीषु दुष्टासु वार्ष्णेय जायते वर्णसङ्करः॥

adharmābhibhavātkṛṣṇa praduṣyanti kulastriyaḥ |strīṣu duṣṭāsu vārṣṇeya jāyate varṇasaṅkaraḥ ||

O Krishna, by the prevalence of impiety, the women of the family become corrupt; and, when women are corrupted, O Varshenya (descendant of Vrishni), intermingling of castes arises.

When irreligion spreads, the women of the house start to stray; when they lose their purity, adulteration of the lineage follows.

Our plain-language meaning of this verse is waiting for scholar review.