Not sure which author you were referring to regarding reading a “tint of racism.” Please specify/clarify “who,” thanks.I thought I saw a tint of racism as I was reading it. When the author speaks of "...not only did He divide up the world by language and genetics..." There is actually more genetic differences within "races" than there are between so-called, races. That notion that the "races" are divided up genetically, is, in itself, a racist trope that has been used in the past, in order to view others as "inferior" and, along with Evolutionism, has been used to justify the eugenics movement (championed by Margaret Sanger--the founder of Planned Parenthood) and abortion as means of ridding us of "human weeds".
The dominant group in China today (known as "the Han") think of themselves as "genetically superior" to all others. It is rumoured that the leaders of the Chinese Communist Party (CCP) actually use it among themselves to justify their treatment of the Uyghurs (some of whom have blue eyes, by the way). We are ALL descendants of Adam and Eve and, in turn, descendants of Noah and his wife and descendants. Satan apparently approves when we divide ourselves along racial, ethnic, etc. boundaries. If he can then get us to hate each other, he is one step closer to causing the thievery and murder that he desires for humankind--because all humans are made in the image of God, whom Satan hates.