Two wrongs never yet made a right. Two wrongs never yet made good public policy. You always get less of what you tax and more of what you subsidize. Consequently, we get more divorce, more poverty and more illegitimate children. Like it or not, whatever undermines the traditional two-parent family undermines society itself.
Reality is resilient.
Because human institutions arise from human action, because human actions arise from human nature, and because human nature cannot be fixed by anything short of the grace of God, you cannot remake the world at will in order to have it fit the plans existing inside your head. Good politics begins with the real world outside your head and with traditional morality, not with your private political desiderata. Public policies not rooted in reality and morality are simply free to be fatuous. Public policies not tied to, or derived from, objective historical indicators are examples of what Jeane Kirkpatrick calls the fallacy of misplaced malleability. Read number five again.