https://en.wikisource.org/wiki/The_Ego_and_Its_Own/The_Hierarchy

> The history of the world, whose shaping properly belongs altogether to the Caucasian race, seems until now to have run through two Caucasian ages, in the first of which we had to work out and work off our innate negroidity; this was followed in the second by Mongoloidity (Chineseness), which must likewise be terribly made an end of. 

what did he mean by this?