I find it odd, even sad, that derogatory language is allowed here. Right or wrong, the response reference would never have been made.
How would you feel if you were of Chinese ancestry? You might even feel there is not that much difference between the two references.
And the bottom line is, Tesla is a great American company that happens to hire people from many walks of life. Mr. Zhu is certainly an accomplished executive or he would not have the job.
I thought calling someone a racist would be below you but I guess not. Chicom is only slightly derogatory.
Chicom is formed by conscious imitation of the Chinese abbreviation 中共 < 中國共產黨. “Chicom” feels slightly derogatory. Google Ngram data show that the word has been used since the mid-1940s.