Even for forms of bigotry not directly related to race, marginalized white people in leftist spaces seem to seriously have far less skepticism than I do as an intersectional black person in leftist spaces.
For instance, as a black trans person, not only do I expect white people in leftist spaces to have racist brainworms, but I expect cis people in leftist spaces to have transphobic brainworms as well.
However, it seems like white trans people in leftist spaces, on the other hand, not only ignore their own racist brainworms, but it seems that so many of them just all willy-nilly assume that your average cisgender person in leftist spaces is going to be totally accepting of trans people and not have any strong transphobic brainworms whatsoever.
I find that they don't have enough skepticism, but I do believe that I'm on the opposite end of this issue, in that I have too much skepticism. It's to a point where I feel that somebody being white and/or cis in and of itself is a major red flag for me.
A kind-of-an-example-of-this-but-not-really I recall is when a user on Hexbear posted a thread about SSouth KKKorean gender troubles, and they referenced the 4B movement and praised it as some kind of "epic, based WAOW! feminist movement," and many trans users were commenting on this post praising 4B as well. After it came out that 4B is racist, bioessentialist, and just flat-out awful in so many ways, people were cringing at themselves.
What's my point? Well, if I hear about any female separatist movement, especially in a place like Occupied KKKorea, my first thought isn't going to be, "Wow, this is epic girl power and a powerful middle finger to patriarchy!" Instead, my first thought is going to be, "Let me research this group and find out about all of the terrible shit that they support, and while I'm at it, let me acknowledge how undialectical their movement is, as it has no demands and it is rooted in zero feminist theory."
The fact that womanists have pushed against white feminists doing this shit in the United States educates my skepticism very well here.