In this excerpt from Kennedy's 1963 Civil Rights Address what idea is being most clearly defined?

"This is not a sectional issue. Difficulties over segregation and discrimination exist in every city, in every State of the Union, producing in many cities a rising tide of discontent that threatens the public safety. Nor is this a partisan issue. In a time of domestic crisis men of good will and generosity should be able to unite regardless of party or politics."

diversity
equality
ethnic