I would guess that if "thug" refers more to a black person, that's because "thug life" is a black thing.
See above the many, many black rappers who glorify being a "thug". I have not seen any white artists (except for the Eminem type) who refer to themselves as thugs.
See above the many, many black rappers who glorify being a "thug". I have not seen any white artists (except for the Eminem type) who refer to themselves as thugs.