Are the Borg the perfect enemy?
Well, you judge.
I once postulated a "hive mind" that took a different tack...it enriched civilizations, allowed for individualism yet instant networking...differences of race, color, etc would be meaningless. I also proposeed they should be white instead of black or earth colors so as to touch upon our psychological interpretation of such colors. I foresaw that the UFP even with quantum torpedoes and the like could not hold their own and would eventually succumb to the Borg, but this new cyborg race would assist us, and at least force a stalemate. Would have made a FANTASTIC movie.
It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring. Carl Sagan