"For many people, Black reflects a shared sense of identity and community. White carries a different set of meanings; capitalizing the word in this context risks following the lead of white supremacists."
I don't find that thoughtful.
The argument further erodes when they also capitalize "Asian", which is described as "groups that include myriad ethnic identities united by shared race and geography and, to some degree, culture" - How does that not apply equally to "white" also?