The marital union of one man and one woman is a public good uniquely and in itself, and the taxation system, among so very many other instruments of public policy, should recognise that fact.
It should recognise marriage as a unique public good, to which civil partnerships are not comparable. And it should recognise marriage as a public good in itself, whether or not there are children, a related but different public good of which other forms of recognition rightly exist.
But will any Party Leader say this, as once they would all have done? What do you think?