[bitwize]

The idea is that racist remarks against, say, black people carry an implicit threat of harm, whereas racist remarks against whites do not because white people hold the reins of power. Hence, verbal racism against black people threatens their safety whereas verbal racism against white people only threatens their comfort. Implicit in this is the notion that maybe white people should feel uncomfortable, as their comfort is based largely on a system that discriminated (historically to the point of atrocity) against nonwhites.

[FireBeyond]

So to be clear, it should be a safe space, but only for some? For others, it should be a space that they are free to be attacked, as punishment for the prior sins of others? Because this isn't even equality, or affirmative action, this is saying "you are free to attack some people on the basis of their race, or sex - things outside of their control".

It also still doesn't address the core concern. If you require being able to be sexist or racist to someone to make you feel safe in your space, that's a problem.