i def. dont think "wigga" is racist.
people use the word to describe white people who try to "act black"...
if anything thats more disrespectfull to black people seeing as there is no way to actually act like a black person. thats basically like saying all black people are the same. and when you see a white person with a g unit tee and a bandana on its not exactly acting black imo its just a style/fad/fashion statement,etc.
sometimes people refer to white people as wiggas because the way they talk might sound similar to another black person but imo any person, whether they are white or black, who talks to where you can barely understand them, isnt a wigger or a nigger, its just a fuckin retard who needs to realize how fuckin stupid they look when they talk.