The symbolism of the american president that signed the Emancipation Proclamation and that freed all slaves in America to be free men forever, this is the hope that other nations have lived this division, and this problems between races, but with time and work they do go away.
Assuming that this is referring to the same passage that was posted before with this question, the editorial writer's main point is that "The mayor and city council have made a serious mistake in selecting a site for a new community theater" since he expresses this more than once.
