I know right off that this is going to be a highly emotional thing. You don't talk of race and intelligence and say one is more intelligent than the others without attracting a lot of controversy if not condemnation.
Liberals and politically correct partisans will tear you to bits if they could at the jump of the gun. But are they trying to obfuscate to appear nice?
The Jews have often been perceived as the most intelligent people. But if done researches are anything to go by, it is said that Asians triumph them, particularly the East Asians.
I used to wonder why Asian babies, especially Chinese babies, have relatively larger heads.
Now I know I shouldn't say this - it is just not nice! It is just not a done thing! Oops, sorry, really! you should blame the politically incorrect scientists.
Every race has intelligent people.