It's not just paper wealth though. Being born at the right time means you get (on average, across the population, etc.) more living space and a better location. You also get increased earnings over working lifetime and more pension wealth.
Of course older people should not be resented because of this but equally younger people should not be dismissed as feckless and lazy because they don't have a good job, large house and a generous pension. I would also suggest that the latter is to a greater or lesser extent caused by the former.
And there is a policy point here: we should look at some way of redistributing these effects so that the generation after mine doesn't bear an unfair burden particularly in terms of paying for the effects of climate change (which we skillfully avoided). At least if one believes in progressive politics.
(I should perhaps restate that in making these points my parents (1943, 1945) and me (1967) are in pretty much the golden spot in terms of demographic advantage.)
I don't think there will be a price crash nor do I think that would be a good thing. Ultimately current and future generations will just be gradually less well off as these effects play out over time, although obviously such effects are complex and all wrapped up in other demographic effects (immigration, birth rates, longevity, etc. etc.).
Which again points to policy options, which brings us back to the Resolution Foundation and the video I posted. The point of this is not so young people you can argue with their rich uncles over Christmas dinner but to inform and find policy options to improve people's lives.