who can sack them
Good point. How can you un-elect somebody who was never elected.
The problem is that Prime Ministers are never elected - they mostly just happen to be the leader of the party that wins the election, and are thus mandated. In reality, any serving MP can be, or become, Prime Minister.
We've heard mutterings about changing the system, fixed term Parliaments, primary elections (the voter chooses the candidates), but I suspect that there is too much vested interest, and money, involved for there to be any serious attempt to change the status quo.
There used to be a time when the civilised world modelled its own systems of government on our 'mother of Parliaments', and if the world still harbours such aspirations, then Heaven help it!
I never believed or thought that I would find myself saying that perhaps we really do need a revolution, but I'm certainly beginning to think that way...Our Parliamentarians are probably behaving in pretty much the same way as the French aristocracy did up to 1789, and on that basis, talk of a British revolution isn't as far-fetched as we might imagine?
Malc