Why cant I use the N word? If it is in songs and used on the street all day long why can only certain people use it? Did they earn the right to use that word? Do Jewish people run around all day saying hey Jew to other Jews? Now their is a race that was really kicked in the behind. Do they get special words that they can only use? The Christians were killed just for admitting to be one. I am Irish and my people were sold to America before the Blacks were shipped over.Almost every race has been enslaved at one point or another. If the word offends people than everyone should quit saying it.
The real question is: why do you --as a white man--
want to use it? You've already shown you can't provide a non-racist way for you to use it, which makes sense since you can't. The n-word is an ugly, racist word used by white people as an expression of racial superiority, racial hatred, and/or as a precursor of racial violence or murder. No non-racist white man should want to use this word.
And whether or not black people use it or not shouldn't concern you. Whether or not it is appropriate for them, they aren't being racist when they use it with each other. It is always different when members of the same group use derogatory words about that group with each other. It's different when an Irishman uses M--k to another Irishman than when an Englishman does, and it's different when two Gay men call each other queer than when a straight man does. Being 1/2 Jewish, I can assure you Jews do kid each other using derogatory words about Jews, as well.
And your other statements are false equivalencies. Yes, Irish-Americans did face prejudice and a very small percentage of them were slaves. And the Irish certainly faced ugly prejudice--and even racism--from the British. However, the numbers of Irish-Americans didn't remotely endure the slavery the numbers of African-Americans did. They didn't face a systematic system of Jim Crow and segregation deep into the 1960's. They don't face substantial racism from American employers. And numerous unarmed Irish-American men and boys aren't still being killed by American police officers. There is no equivalent there. And Christians have been the dominant religious group in America and Western nations for centuries. The fact some were fed to lions centuries ago doesn't change that.
It is when the lips start moving. I have people figured out in the first 5 words that come out of them.
You're changing your argument here. You originally said your determination of who was a gang member or skinhead was through visible interpretation, so you clearly can't do that. As to telling who is by his or her first 5 words, that, too, is unlikely. Unless the person says something like "I'm a Compton Crip" or a bald man with swastikas on his coat says "Sieg Heil," they haven't exactly given themselves away.