BG 1.34-35

Teachers, fathers, sons, grandfathers, maternal uncles, grandsons, fathers-in-law, grand-nephews, brothers-in-law, and other kinsmen are present here, staking their lives and riches. O Madhusudan, I do not wish to slay them, even if they attack me. If we kill the sons of Dhritarashtra, what satisfaction will we derive from the dominion over the three worlds, what to speak of this Earth?

BG 1.42

An increase in unwanted children results in hellish life both for the family and for those who destroy the family. Deprived of sacrificial offerings, the ancestors of such corrupt families also fall.