A simile includes something that has like or as and a metaphor does not have that. It only contrasts
The word that Kennedy seeks to redefine is “<u>Freedom</u>”. The reason why a redefinition of such word is necessary is that white Americans did not realize that for “<u>Freedom</u>” to be truly “<u>Freedom</u>” it has to apply to <u>all </u>Americans, not just the white, or rich, or male, or educated ones. The long term cultural change Kennedy wants to trigger by redefining this word is awareness that without social justice for all groups of society, it does not matter what its noble ideals are, they lack legitimacy as they are conditioned to arbitrary circumstances such as race, gender, social status, religion, etc. Since they are conditioned by arbitrary restrictions that empty such notions of their true meaning, they lose their universal legitimacy and intrinsic value.
I believe the answer is number 4 ^^
Switch the last two and then everything should be correct!