Those depositors deserve to get the best return on their money that supply and demand can offer. Why should people who save be sacrificed for the benefit of those who spent more than they could afford?
Why are politicians so focused on one set of people, at the expense of other people? Because "saving" one set of people increases the chances of getting those people's votes. Letting supply and demand determine what happens in the housing market gets nobody's votes.
If current occupants are put out of their homes and the prices come down to a level where others can afford to buy those homes, nobody will give politicians credit-- or, more to the point, their votes. Nor should they.
Rescuing particular people at the expense of other people-- whether the others are taxpayers, savers or prospective home buyers-- produces votes. It also produces dependency on government, which is good for politicians, but bad for society.
That is why politicians give what Adam Smith called "a most unnecessary attention" to things that would sort themselves out better and faster without heavy-handed government intervention.
Why do the media fall in with this arbitrary focus on particular people who are having trouble holding on to homes they cannot afford? Partly because it makes a good story and partly because too many people in the media simply go with the politicians' talking points. That is a lot easier than thinking.
But the rest of us have no excuse for not thinking-- or for letting ourselves be stampeded by rhetoric about "saving" the housing market.