R. Star didn't say the Borg shouldn't be unbeatable, only that they shouldn't be something you can reason with! I agree with everything you said! The thing is, the Borg were defeated in BOBW, not because someone reasoned with them, and certanly not because they were afraid, but because of one of their weaknesses. The same way they find strenght in working as collective, and obtain massive knowledge through assimilation, having access to a former drone, with deep knowledge of the Collective (since they share everything), should be crippling to the Borg. And it was! Through Picard, the Enterprise crew learned how to deal with the Borg. Through Seven, the Voyager crew learned how to deal with the Borg. There's no need for the Queen letting Janeway leave because she fears for her life, that particular situation should have been solved through Seven's intimate knowledge of the Borg. In part, it was! They just needed to go all the way. As I said before, my problem with this particular episode is not Voyager blowing up some lowly probe, or escaping from them, it's the Queen having fear!