I capitalise Black (and Indigenous); I occasionally capitalise White when I’m wanting to make a specific point about the distinction between skin colour and socially-assigned racial hierarchy, but I normally just leave it as white. Because fuck white people, basically.
It’s important not to decontextualise and draw a false equality between whiteness and Blackness. Blackness was created as a response to cultural genocide and oppression; it is a justifiable and often admirable thing. Whiteness, OTOH, was created as a means of facilitating genocide and plunder. There is no common cultural bond linking white people apart from collaboration in the subjugation of non-white people.
They aren’t equivalent.
