Baius
In a world made of magic, it's hard to think anyone else would know more than we did, as arrogant as it sounds.
If void itself is the absence of magic or something that devours magic, can you reason with something like that? Its nature is for there not to be magic, and without magic, our world and we are dead.
That also comes with the baggage of what would happen to the balance of the world if you take it away.
I don't think it's that simple, but I certainly wish it was.