But you forget about all the 'normal' people who have been priced out of the market for the last 5 years. Why does no one seem to care about them, they are not all 'vultures'? Yes, house prices going down will shaft some existing home owner (possibly those who are risk-takers), but it will enable a lot of people to own a home.
15 years ago, it would be perfectly reasonable to expect a couple, say a teacher and a nurse, to buy a 3 bed semi together and raise their children in it. At the moment, that is unattainable. Now, that to me doesn't seem right, so I think house prices should come down. What is the logic of being in so much debt anyway - surely it makes more sense to buy a house for 100k not 250k?
Anyway, I think you are wrong on your assumption. There is a spring bounce - it happens every year, even in a falling market. Give it a month or two, and prices will start to fall again. Interest rates are at a historic low and will have to go up. People who have borrowed beyond their means will find they can't make the repayments anymore and more houses will come on the market at lower prices.
Tbh, I don't like the fact that housing is such a divisive issue, but it I had to take sides, I feel more for those who have worked hard and saved hard, but still can't afford to buy, compared with those who have closed their eyes and crossed their fingers about their finances, overstretched themselves, or released equity from their house to buy 'stuff', which means now they are can't afford the lifestyle to which they have become accustomed.