When a person of color, especially if they're black like me, affirms their support for causes such as queer liberation, feminism, animal rights, or socialism, I immediately feel that I can believe, with minimal doubt, that they're truly convicted and principled in what they're advocating for.
However, when a white person claims to support leftism, until my skepticism is proven wrong, I immediately assume they're a dishonest and performative libshit. I then proceed to interact with them with hefty amounts of caution. If my assumptions are proven true, I'm never shocked.
None of those groups are exempt from this guideline.
Honestly as a disabled queer second-generation immigrant who'd be classified as "white" by the US census if I lived in one of those occupation zones, you're not wrong. I have seen some absolutely ridiculous bullshit from people who on the surface have almost the exact same conditions as me — it's in fact those experiences that have convinced me that I cannot rely on disability, queerness, or immigrant status, not even in combination, as a reliable predictor for good politics: whiteness tends to overpower everything with its stink in most cases, but every system has its entropy, and sometimes somebody will slip through the cracks... Some factors might increase the odds, but never in a way that should be counted on, never.