As for unethical, things like PioSolver, MonkerSolver, and PokerSnowie are basically de facto standard for play at high level online - and are absolutely used at breaktimes in live play. Then you have people multi-monitoring, or running GTOWizard in a VM, as a given.
You're basically claiming that all bots in action are Pluribus style, which is just nonsense. I bring up SuperSystem since its the earliest reference I can think of by a Pro to the concept of range advantage.
The modern poker sites basically just teach game theory optimal... which ends up with people running GTOWizard as a given. The best bots I've seen that avoid detection are basically doing some variant of the strategies outlined in modern guides like RIOs From the Ground Up.
