I’m not sure I’ve seen any evidence of it existing though, is it just a Boogeyman, or so something that happened a while back? An in joke of some sort?
If someone claimed that people just say “theft” to mean “transactions I don’t like”, that would be denying the existence of actual theft.
If someone claimed that people just say “slavery” to mean “jobs I don’t like”, that would be denying the existence of actual slavery.
Same goes here.
Pointing out denialism is usually only a problem to the people engaged in it, and the wrongdoers they’re defending.