He probably wouldn't answer you because that statement is RACIST, and he like most sensible people won't fight in an argument that devolves to that level. Why does it matter so much to you liberals what color my skin is? Isn't that my business?
I'm sorry your life is so pointless and meaningless that "destroying" a complete stranger in a 144-character-limit line felt so good. I hope you find something better to do with your time. May I suggest reading to the elderly in nursing homes? They would really appreciate it, and they won't care what color you are, which might be a strange and unique experience for you.