Can some black people answer this question?

im not a racist. really, im not. well... no im seriously not. but why do you get offended when a white person say the n word and you guys can say it all flippin day. its hypocritical. its not like i try and kill black people when im called a cracker. ooooohooooooooo cracker, how funny. its a delicious snack. salty and buttery, whats not to like? so yeah big whoop i called you a n ig. why does a word that has no meaning offend you?