The aggrieved always initially present their offense as being representative of the entire community of x. Saying "my friends are OK with it" is a way of saying

The aggrieved always initially present their offense as being representative of the entire community of x. Saying "my friends are OK with it" is a way of saying "you don't speak for all X" and puts them in a position of replying "well maybe the people who know you best and live in your community aren't offended, but they should be according to this essay on critical race theory.