I found it hard to believe that politicians might take such a long-viewed machiavellian stance WiF, but the more I think of it the more I think you might be right. It is like Thatcher's underfunding of British Rail -- take a state service that works; undermine it to the point where it seems inefficient and unworkable; then remove it.
As the great Jeremy Bentham said, 'never put bad political decisions down to intellectual inaptitude rather than moral inaptitude.' In other words if it looks like they are being stupid, they are probably being bad.