I was thinking the big twist partway through the story is that there are no "magical people" at all, and that what you actually need to cast spells is enough people in one place who all want the spell to happen. Cop and troop spells are easy to cast because the bourgeois have class solidarity, but once the proletariat is similarly unified the horizons become literally infinite.

It's a bit on the nose as far as metaphors go, but I like it.