That statement really cuts to the heart of the matter. There are many now, among those who describe themselves as "religious," who have convinced themselves that abortion is somehow a minor issue compared to "social justice" for those they see as poor and oppressed, nationally or internationally.
But who are the most deserving, the most needing, of justice? Who are, in Christ's words, "the least of my brethren?" Wouldn't that be those who cannot defend themselves, those who have no advocacy groups, or organizations, or political structures to defend them? Those whose very existence depends on the whim of one person or organization -- such as the unborn child, and those at the end of life? Those who die anonymously, for the sake of someone's convenience, with none to mourn the passing of their souls?
Let us insure justice for the "least," before we insist on justice for others.
--- and literally identifies with the child (as He does with the poor in Matthew 25) when He says, "Whosoever shall receive one of such children in My name, receiveth Me; and whosoever shall receive Me, receiveth not Me, but Him that sent Me."