But I would like to point out that a rule that allows someone to openly state they discriminate during interviews but forbids a strong reaction to that statement might require some examination.
You could just as easily argue that people “discriminate” against candidates by making them do leetcode, when leetcode is unrelated to performance at the job. Leetcode is a performance some people look at during interviews, just like how you socially meld in an interview is a performance people look at during interviews.
https://en.m.wikipedia.org/wiki/Stimming
I have no idea since I wasn’t there when you interviewed that person but it is something that came to mind.