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Bg 1.42

doṣair etaiḥ kula-ghnānāṁ
varṇa-saṅkara-kārakaiḥ
utsādyante jāti-dharmāḥ
kula-dharmāś ca śāśvatāḥ
Synonyms: 
doṣaiḥ — by such faults; etaiḥ — all these; kula-ghnānām — of the destroyers of the family; varṇa-saṅkara — of unwanted children; kārakaiḥ — which are causes; utsādyante — are devastated; jāti-dharmāḥ — community projects; kula-dharmāḥ — family traditions; ca — also; śāśvatāḥ — eternal.
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.
Purport: 

Community projects for the four orders of human society, combined with family welfare activities, as they are set forth by the institution of sanātana-dharma, or varṇāśrama-dharma, are designed to enable the human being to attain his ultimate salvation. Therefore, the breaking of the sanātana-dharma tradition by irresponsible leaders of society brings about chaos in that society, and consequently people forget the aim of life – Viṣṇu. Such leaders are called blind, and persons who follow such leaders are sure to be led into chaos.