Democrats want "equity", but without fathers they are always starting at a disadvantage, hopefully not a "disaster".
Republicans just want a fair shot at success, without dealing with "affirmative action" or other governmental obstacles, creating a "tragedy".
From the article,
"Both perspectives claim to uphold justice but define it differently. For Democrats,
justice means fairness of conditions—removing perceived systemic impediments so everyone can start at an equitable (equal) point. For Republicans,
justice means fairness of process—ensuring the freedom to act and reap the natural rewards or consequences of those actions."