The Washington Examiner mines more of this guy’s book and find an anti (people) family bias:

Radical changes in family structure and relationships are inevitable, whether population control is instituted or not. Inaction, attended by a steady deterioration in living conditions for the poor majority, will bring changes everywhere that no one could consider beneficial. Thus, it is beside the point to object to population-control measures simply on the grounds that they might change the social structure or family relationships.

Holdren, with a blithe “of course,” encourages government to wage an effective war on the family in America. It begins with the abolition of “pronatalist” policies and continues with their complete reversal:

As United States taxpayers know, income tax laws have long implicitly encouraged marriage and childbearing…Such a pronatalist bias of course is no longer appropriate. In countries that are affluent enough for the majority of citizens to pay taxes, tax laws could be adjusted to favor (instead of penalize) single
people, working wives, and small families. Other tax measures might also include high marriage fees, taxes on luxury baby goods and toys, and removal of family allowances where they exist. Other possibilities include the limitation of maternal or educational benefits to two children per family.