Spending time teaching people to use people of color instead of black is just performant. Actually firing a recruiter that immediately throws any black resume into the trash is real change.
That's largely all anyone can do (and I have a lot more ability to do something about it as a business owner than the average progressive), which I'm sure feels inadequate and leads to roving bands of thought police members looking for perceived transgressions to attack.
For example, if someone said the N word in front of you, or made an uncomfortable joke about a Mexican, would you decide not to support them? If so, then does that make you one of those roving thought police? You'd obviously be censoring free speech if you decided how you treat them based on what they say!
On the other hand, people are clever, they know not to be too obvious or it may cause them social issues. So, as long as they don't do something too untoward right in front of you, does that mean they gain your full support?
Of course, I won't be surprised if those proponents of free speech decide to censor me by downvoting instead of engaging speech with speech