Why Might Focusing on Past Injustices Not Be a Good

Why might focusing on past injustices not be a good guide to determining a government's responsibilities to correct for racism?

A) We cannot know how the world would be different if all the harms of racism never happened.
B) Affirmative action in education is fully adequate to address all the harms of racism.
C) The government cannot afford the reparations that would be needed to correct for racism.
D) The government does not have a responsibility to ensure equality of opportunity.