What do you mean? It's a bit rich to hear airlines talk about putting unruly passengers on lists, while the behavior of unruly staff is supported.

Nobody is "supporting" the staff in question; you're just making that up. It's a huge reach and a sloppy argument.

Unruly passengers represent a clear danger to the safe operation of flights. They cannot be tolerated. Period, paragraph. There is, obviously no such danger posed by the actions of airport security, on the ground, and in any case, airlines have no jurisdiction over those people. They absolutely do have jurisdiction over passengers, though.

If you get on a plane you agree to fucking obey the directions of flight staff. It's federal law.

Are there reports of widespread unruly airline staff I’m not aware of?

I said 'staff', not 'airline staff'; in this case, it was 'airport staff', and the hypocrisy still stands: why are airlines fixating on passengers, not other staff?

Because they have no control over said "other staff". At all. You knew that, though.