It doesn't, but it can help. Anyway, in case of Hungary, they have already been warned by the EU a couple of times. Time will tell how this evolves, but weakening the project as UK has done will for sure reduce the incentives to return to a more moderate path.
These free-market types, they are really wreaking the world. The 1% capitalism we have reached is putting a death sign in the fundamentalist market ideology, but they are for sure going down with a bang.