I am not included within the pale of this glorious anniversary!
Point of View
This Fourth of July is yours, not  mine. You May rejoice, I must mourn.
Frederick Douglass was a former slave and an engineer on the underground railroad and a abolitionist.
What is a rhetorical question?
  What is a rhetorical question?a question asked in order to create a dramatic effect or to make a point rather than to get an answer.A rhetorical question is one for which the questioner does not expect a direct answer
Frederick Douglass is giving his famous speech "The Meaning of July Fourth for the Negro." In this speech the point of view is first person because he is giving the speech.
Rhetorical Question
Do you mean, citizens, to mock me, by asking me to speak today?" 
Another example of first point of view is when Frederick Douglass says "This Fourth of July is yours, not mine. Youmay rejoice, I must mourn."
Rhetorical Question
What have I, or those I represent, to do with your national independence?
Rhetorical Question Definition 
Fredrick Douglass is giving his famous speech "The Meaning of July Fourth for the Negro." In this speech he says Do you mean, citizens, to mock me, by asking me to speak today?". This is an example of a rhetorical question
Another example of when Fredrick Douglass said a rhetorical question is when he said "What have I, or those I represent, to do with your national independence?"