Imagine growing up knowing you weren't crazy for believing in magiq. How much more would we understand about the world, about our own history?
Most of what we understand (or I think we understand) about the nature of magiq is that it's a relatively neutral (Tool? Entity? Force?) with benevolent inclinations. You can't kill someone and use magiq, for example, if Teddy can be believed. You'd be cut off.
The BoB spell is fueled by our positive traits and positive emotions, our connection to one another and so on. Another factor to consider, and something that makes me feel that the Silver's motives for wanting to stop us are not for our benefit.