Why does thomas jefferson choose to end the declaration of independence with these words?

Hi how are i have some questions about english subject can you answer for me ?

Mr. underwood's editorial defending tom robinson is surprising because he's described as not wanting to be near negroes it's a dangerous stance to take at that time he had been neutral during the trial he wasn't in the courtroom

Is the book the outsiders a realistic story? plz explain. asap!