Bhagavad Gita Chapter 1.42
doṣair etaiḥ kula-ghnānāḿ
varṇa-sańkara-kārakaiḥ
utsādyante jāti-dharmāḥ
kula-dharmāś ca śāśvatāḥ
Translation
By the evil deeds of those who destroy the family tradition and thus give rise to unwanted children, all kinds of community projects and family welfare activities are devastated.