Have u read the book "to kill a mockingbird"?

i am writing an argument essay. is this introduction good?

many characters in the novel to kill a mockingbird by harper lee have to overcome an abundance of obstacles to make a change to the way society thinks. society in this novel assumes that the black man atticus finch is defending is automatically guilty which we know is not the case. this entire novel shows that if you work hard and fight for what you believe in you can change the way people view things just like how atticus proved that his client didn't rape anyone.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

definition was not one of the four methods