Possible options (I may be leaving some out)
-Smile and shrug it off/Ignore it
-Play along ("Hey, if she wants some taxi driver dick in her life don't stop her from getting some!")
-Deconstruct his game by raising the curtain on him:
"Hey bro you got it confused. You're not supposed to neg the dudes you're supposed to neg the chicks!...unless...you're trying to game me?!?"
"Somebody sounds threatened. Why you cockblocking bro?"
"Pulling the race card. Classy move."
"Ahh, ethnic jokes. So clever man."
-Smile and shrug it off/Ignore it
-Play along ("Hey, if she wants some taxi driver dick in her life don't stop her from getting some!")
-Deconstruct his game by raising the curtain on him:
"Hey bro you got it confused. You're not supposed to neg the dudes you're supposed to neg the chicks!...unless...you're trying to game me?!?"
"Somebody sounds threatened. Why you cockblocking bro?"
"Pulling the race card. Classy move."
"Ahh, ethnic jokes. So clever man."