I think you are really misunderstanding the term racefail, and if you think the entire conversation has been written off as "an insulting and vitriolic mess on all sides" you have not been paying attention at all, because that is so, so far from true.

This post has links and excerpts of some of the best writing to come out of this.

Also, fandom is not a safe space for many people. That's part of what this is about. Fandom (whether it be media fandom or sci-fi/fantasy fandom) is often a very unwelcoming, very hurtful place for fans of color. The rhetoric that it is a safe space for everyone is in and of itself hurtful.