It is inevitable that the Chinese and Indians will be represented all over the world simply because of their vast population and the ambition to do better overseas. Migration is the trend for the able and the risk-takers who seek a better life. Politics does divide people of the same ethnicity as they did in Vietnam, Korea, India and China and once-upon-a-time, Germany. Hongkong was so politically different under the British but is now absorbed within China, just the reverse. Similarly with Macau but not Chinese Taipei or Taiwan, which seems to want to remain what they are presently, independent of mainland China. However, with migration comes inter-marriages and the dilution of one's ethnicity. I think Eric Pang is one example. In a way, inter-marriages help to minimize cultural bias and promotes understanding of those who are not of the same ethnicity.