I had to change the terms whitelist and blacklist from an internal server-side application over 15 years ago. Management concern was that if there was an error the message could have been seen by customers and could have caused offence.
I thought it was silly but NBD, I changed it to redlist and greenlist and carried on.
The thing is, they’re only words, but if someone doesn’t like them, find some different words. “Primary” and “secondary”, or whatever, carries the intent just as well.