Any model for an anarchist society without an answer to how to dismantle and prevent racism - or any other kind of oppression of a minority - is not, in my view, anarchist. Anarchism requires the elimination of unjustified hierarchies. If racism exists, then a race hierarchy exists, which is inherently unjustified.

How that is achieved is a very different matter, and there’s a wide variety of thought on the subject and lots of differing opinions.

Personally I think the starting point has to be that our society is completely intolerant of anything which elevates or denigrates people based on race, gender identity, disability, sexual orientation, spiritual belief, etc. so long as their beliefs do not promote any other kind of intolerance.

As for how this is implemented, again there’s great diversity of thought, but in general I feel like the process should look something like education, then arbitration, then banishment. Obviously, in extreme cases of hate speech or for particularly hateful examples some steps might be skipped or abridged, I don’t think a one-system-fits-all solution can be designed or is even desirable.

An absence of inherent detail for how everything would be implemented is a feature, and not a flaw, of anarchism IMO, because it’s helpful that questions like this are resolved by consensus, not by decree or dogma. Anarchism is all about building a cohesive, peaceful society, not about enforcing our personal will on others.

For example, I have never experienced racism, so it would be totally foolish and ignorant of me to think that I have all the answers for how to solve it.