Some issues, those dealing with intrinsic evil, present us with no choice on what position we must support. They are intrinsically evil because there is no situation where they can be a moral choice; regardless of ones intention, these things are always wrong. There is a short list of these issues: abortion, euthanasia, ESCR, human cloning, and homosexual “marriage.”
On the social issues, which constitute the vast majority of decisions to be addressed politically, the Church takes no position. These are prudential issues about which each individual is free to choose his own solution. Church teaching provides guidelines and objectives toward which we should strive (justice for all, feed the poor, …) but she takes no position on which specific policies are best to achieve those objectives.
So, to that degree, his charge is correct: you are putting more emphasis on the issues dealing with intrinsic evil than on the prudential issues. This puts you in the same company as JPII.
Above all, the common outcry, which is justly made on behalf of human rights—for example, the right to health, to home, to work, to family, to culture—is false and illusory if the right to life, the most basic and fundamental right and the condition for all other personal rights, is not defended with maximum determination. (Christifideles Laici, no. 38)
In order to justify to himself his vote he must diminish the significance of the intrinsically evil things his candidate supports and over emphasize the prudential choices he personally approves. At the heart of his charge is the assumption that his solution to social issues is moral and yours is not. He assumes that, because he cares about the poor, his solutions to their problems will work and that you oppose his solutions not because you disagree with their effectiveness but because you don’t care about the poor.
Agreeing with the Church that abortion is the greatest social evil of our time, and acting accordingly, says nothing whatever about your commitment to any other social problem.
Ender