Yes, that's why I included the last line of my main post: (until the events of the plot kick off, of course).

When I say unanimous, I am not speaking literally. Obviously the villain in any one of these stories is OFTEN someone who wants to take over both worlds; but there it is: 'The Villain'. Looking at Harry Potter, wizards are recruited from all over the world. They each have different backgrounds, different cultures, different views, different beliefs, and different childhoods; so why is it that it took UNTIL Voldemort for the idea of "Hey, why are we hiding out again?" to seriously arise? Surely this should have been a REGULAR thing the wizarding world contended with. And IF they're contending with it... why? Why is it the 'good' decision to not rule everything? Why did the board of directors decide on THAT approach vs any other? Etc.

Again, 'they felt their aspirations wouldn't get enough traction', but why is that? Why is the wizarding world one centered AROUND non-interference? Why is THAT the default? So on, so forth.