[Dan]

So he is NOT a Chinese but his stock is from there. He said very clearly that he is a Singaporean and that Beijing or Taipei don't see him as having the right to speak as a Chinese.

It can't get any clearer.

Whether it's Han, Wu or Tang they are all of Chinese origin
Why are you so shy of admitting your root is CHINESE?
If the one who claimed you're a CECA then you're actually a Chup Cheng.
Your grandfather is pure Chinese, your mother a Hans and your father from South India
Aren't you a Chup Cheng?