While I find a lot of this to be silly semantics, I've actually wondered in my 30 years as a Linux admin how it must feel to be a black person, and hear constantly that a good "hacker" is a white hat, while a bad "cracker" is a black hat. We've used black/white for so long and in so many ways that yes, it will be "uncomfortable" to switch over to red/green. active/inactive, grant/block, etc. At the same time it has become painfully obvious to anyone following the US news that the complaint Americans have heard for decades that black people are disproportionately treated differently than their white counterparts is accurate, and now that we know, it seems a small thing to show that we care by losing the old black/white descriptions of bad/good. In part this started because the good cowboys in the old black and white movies wore white outfits and hats. while the outlaws wore black outfits and hats.
I once read a story where a woman was preparing a roast, and her husband saw her cut about 3 inches off of one end before putting it into the roasting pan. It made him curious, and he asked her why she did that, as the part that was cut off looked to be just as good as the part she put in the pan. When he asked her, she got a blank look on her face and told him she had no idea. Her mother had always done it that way. She called her mom to ask the logic for cutting off the end, and her mother also said she had no idea. That was the way Grandma did it. So her mother called Grandma and put the question to her, to which she replied, "My roasting pan was too small, so I always had to cut off a few inches to make it fit."
It seems to me that it is time to reevaluate whether continuing to call good things "white" and bad things "black" is reasonable, just because Grandma or Grandpa did things that way. In Linux, one way of governing access to the server is by adding IP addresses to "/etc/hosts.allow" or "/etc/hosts.deny". Allow and Deny in that scenario is a very obvious way of describing what you're trying to accomplish, and it didn't need to be "/etc/hosts.white" or "/etc/hosts.black".
I just don't see why making such a change - especially in our current national (US) situation - is such a big deal. I think block/allow makes more sense that black/white anyway. My 2 cents.