Not sure sure what the Borg were intended as originally, but adding the Queen was a huge failure of imagination. They had to reduce a cosmic hivemind into having a singular human ruler, so they could do human things at it and it would make human mistakes.

The Pluribus collective having hardcoded ethical imperatives like “no killing” is already more interesting than the Borg Queen… though the viewpoint character is really dragging things out and the Pluribus’ forced incompetence at interaction with her is a bit odd.