I think she is asking white feminists to try to understand the historical roots of our traditions and to recognise their roots in a colonialist philosophy which benefitted from dividing people into acceptable humans and unacceptable humans
It seems like you see her message as fairly simple really, and most of what she says just as supporting that.
I've noticed that's a not uncommon with this kind of talk or an article - for some people it's not looked at in a ton of detail, it's about what ther sense of the gist of the message is.
I think with this talk though, if you dig into what she's really saying, a lot of it is gobblygook, and a lot is fairly objectionable identity politics. Things that are either historically inaccurate or shallow, or would, if we took them seriously, lead to some unpalatable conclusions.So they tend to undermine the idea of being careful about taking too narrow a perspective.
Personally I have a hard time listening to anyone who talks about white fragility. There is something very distasteful about telling people their considered objections to a POV are inadmissible because of their race, and that if that annoys them it's a sign of some sort of special fragility. The only proper response, apparently, is obedience.