Which means, Mark has said something and now is covering it up by painting everyone with a broad brush.
No, it means he’s right.
Being prejudiced is smart. It can keep you alive.
Furthermore people are indeed racist, for lack of a better word.
It is quite obvious that people prefer to be around other people of their own race.
That does not mean in any way that I hate or do not like or am not capable of liking or accepting people of other races.
But in all of my life, the GREAT majority of my close friends have all been white.
I’ll offer even further evidence that he is right.
In prison, when a person has nothing, what people cling to is race. It is in fact the only thing that matters, and it can and will keep you alive.