Heck, you aren't even thinking of the consequences of your actions suddenly turning non racist words into having racist meanings. What do you think will happen post "blacklist" "culture"? You go from 100% of the population using the word "blacklist" with literally 0 race connotations, to maybe 80-90% of the culture using ban or block list, while some 5-10% of the country either keeps saying blacklist or starts using n*ggerlist because you have now added some new racism into the language.
Want some really really recent examples? "Banning" the use of retard, now has everyone calling each other autists. Which is waaaay worse lol