"A White person should be able to tell you a story about something racist they've seen or heard throughout their lives, and if they don't want to do that, chances are, they get off on denying racism exists."

Yup!

Anti-Black racism is so prevalent in our society than any white person who is unable to tell stories about it is being dishonest, either intentionally or subconsciously. And when I suggest "subconsciously," I'm being overly generous probably.

People who don't see racism in the United States are choosing not to see racism even when it's right under their nose.