So I'm not trying to start a flamewar or anything, genuinely curious to learn more about your view here.
Is your viewpoint that "blacklist" is a racial term in itself, i.e. is used in a racial sense? I've never seen that, and my understanding is that's not the case historically, but call me out if I'm wrong and that's your point.
Based on your comments on disregarding etymology, my understanding is that you're not making the first point. I'm reading your viewpoint more as: "we shouldn't use 'black' as an abstract connotation for 'bad' meanings in words", (presumably due to 'black' being also associated with a group that has a history of racially-motivated prejudice against it, but let me know if this last part is wrong).
I'm also curious if your view is that no colors that have historically described groups should be used as negative descriptors, or is this specific to black people in English? For instance, is your view that phrases like "white bread" to describe boring people, or "brown noser" to describe suck-ups should go away as well?
Additionally, should abstract phrases/words involving the term "black" should be done away with entirely, or that only ones with negative connotations should be avoided? For instance, is it okay for "black ties" to associate "black" with formality, or for "in the black" to be used for businesses that are very successful?
I think I disagree that "blacklist" needs to be associated with black people any more than "white noise" noise needs to be associated with white people. The color black has a long association with a variety of different things, from death ("Black plague") to authority ("Black Rod"), from luxury ("Black Card") to villainy ("Black Hat").
One of the many associations of "black" is with a particular racial group, but that doesn't mean we have to attribute all the associations of that word with that racial group.
It seems to me that if the word itself has no history of racial origin, isn't used today in scenarios of racial prejudice, and the association is not related to a racial group, it seems unnecessary to avoid it.
Like I said, though, I'd definitely love to get a different perspective here.