It was commonly quoted on Internet sites and forums that the distance between NE Asians and SE Asians is so great that NE Asians are closer to Caucasians than they are to their SE Asian brethren. Hence I quoted that in a few of my articles on race.
However, some Asians stopped by in the comments to set me straight, and continue to do so. Some linked to good evidence showing that what I said was wrong. Sure, there is quite a bit of difference between NE Asians and SE Asians, but NE Asians are closer to SE Asians than they are to Caucasians. This stands to reason of course and seems commonsensical.
In general, with a few exceptions, all NE and SE Asians are members of the Mongoloid race. A common NE Asian slander against SE Asians is that SE Asians are Australoids. Not that there’s anything wrong with being an Australoid, but it’s just not true. All SE Asians with the exception of Negritos, the Senoi of Thailand and some Melanesians in eastern Indonesia are members of the Mongoloid race. All NE Asians with the exception of the Ainu are members of the Mongoloid race also.
The truth is that both NE and SE Asians underwent a transition from Australoid to Mongoloid. Before 9,000 YBP, all Asians were Australoids. Around 9,000 YBP, the transition from Australoid to Mongoloid took place in NE Asia. The same transition occurred much later in SE Asia. It was not complete until ~2,200 YBP in Vietnam. Some SE Asians, notably Indonesians, although members of the Mongoloid race, retain some Australoid features from an earlier era.