I've recently been reading/watching some videos and writings by Robin Diangelo on systemic racism - here's a great starting point: https://www.youtube.com/watch?v=h7mzj0cVL0Q. She also wrote the book "White Fragility".
Thinking about that, I'm just wondering how different it would be if one of those people who mistook the employee for the CEO instead turned to the CEO and said "I'm sorry, please excuse me for the instance of racism I just perpetrated against you, I promise it won't happen again." I realize how outlandish that may sound writing that out, but I'd propose that the fact that it does sound outlandish is the main problem. Everyone in the US was raised in an environment that inculcated certain racial ideas, subconsciously or not. We can't address them if we're so embarrassed by their existence as to pretend they don't exist.
Even within her book she claims that no amount of training will solve the issue, it seems that "White Fragility" is just another way for White people to tamp down the anxiety of race relations in the United States, rather than take any meaningful action towards changing it.
If your goal is to truly understand the Black american experience, it's best to start with actual Black authors. The House That Race Built by Wahneema Lubiano is a great set of essays about race and class structures.
Further explanation:
https://newdiscourses.com/2020/06/intellectual-fraud-robin-d...
https://www.theatlantic.com/ideas/archive/2018/12/why-third-...
https://www.wsj.com/articles/jonathan-haidt-on-the-cultural-...
https://unherd.com/2020/01/modern-politics-is-christianity-w...
You don't know who coined "coined", but they may well have been a racist. Are you going to stop using it if so? Does that mean it's no longer useful for communication? Are you going to investigate every word on the chance it might've been and strike those from the lexicon?