Dude, please. First, not "everyone" uses that terminology. And yes, it is quite racist/xenophobic - as would be referring to a German car as a kraut mobile or a Mexican made car as a taco mobile. At a NOPI show I went to years ago, a White dude referred to a Subaru WRX/STI as a "ricer" - the *** beside the car was Asian (Japanese, I assume). He made it quite clear that he didn't care for that term. When the ***'s pals started walking over, I figured it was time for me to walk faster, so I wouldn't have to be called as a witness to any dumb ****.