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.
You're right maybe I shouldn't have opened with that and I couldn't tell whether you were serious or venting and hoped for the later, I'm frustrated at the lack of an american left and I think that kind of mindset as a conscious political choice contributes to that problem, that's why I have some disdain for it.