I have had to google this because removing points 6 and 7 of the joke left me very confused and feeling that I must be a racist (I neglected to read the mods comments). I have found point 6 on t'web, I have in fact found different versions of point 6 on the web (spanish and arabic). I am still slightly baffled, acknowledging that english may oneday not be the dominant language doesn't seem racist or xenophobic to me – perhaps I am wrong, but outwith a joke it seems to me that acknowledging it may be beneficial to learn Chinese to get ahead in business is wise.
Now, I havent found point 7 on the web and perhaps there is good reason, and perhaps the point 6 I found was not the same as the OPs joke. I don't wish to stir things up but is point 6 really that offensive?