Question

What does this quote from MLK's "Letter from Birmingham" mean? "Individuals may see the moral light and voluntarily give up their unjust posture; but, as Reinhold Niebuhr has reminded us, groups are more immoral than individuals.

Answer 1

When one person is doing something morally wrong, but see's "the light" (aka the right way of doing things), that one person is more likely to change their ways than a group of people who are morally incorrect.

The bottom line of this quote is: Groups of people are worse than individuals.