When this happens there is an intermingling of castes and the ancestors of these destroyers of the family fall from heaven as they are deprived of their periodic ritual offerings of food and water.

Madhvacarya has no commentary so we present Baladeva Vidyabhusana's.

When there is a resultant intermixture of castes due to the destruction of the family structure; those who are responsible are damned to hell; but not only these ruinous family members. Their forefathers are also sent to hell as well due to the cessation of the ritual offerings of food and water that are no longer given due to the fact that there no longer exist any male descendants to perform such rites.

In regard to the result of undesirable progeny. The intermixture of castes that follow the family customs and honor the age-old Vedic traditions with those that do not causes a degradation in society and leads the family to a hellish existence. Not only this but the anscestors of such a family also suffer as well because there is no descendant qualified to perform the propitiatory rites prescribed in Vedic scriptures such as sraddha and tarpana. . Being deprived of these oblations due to the absence of qualified progeny as a result of destruction of the family structure the ancestors fall down from heaven and go directly to the hellish planets.