Okay, I guess if you're writing malware then you can feel free to carry on with whatever terminology you like. For the rest of us it is understood that a blacklist is untrusted and a whitelist is trusted, so why don't we just say that explicitly and do away with a culturally dependent metaphor that could offend or confuse?

"Trust" is overloaded in a CS context thus adding to, not reducing, cognitive load.

https://en.m.wikipedia.org/wiki/Trusted_system

Where does this whitewashing (err, denywashing) stop?

No a blacklist and whitelist has nothing to do with trust.

Blacklist simply means “allow by default except for things in this list” whereas whitelist means “deny everything except for what’s in this list”