If you see this as a problem to be solved, please don't do anything. This is how the normal healthy market works. Leave it alone.
will it (be allowed to) work as intended? the sector becomes/is too big to fail and is deemed a national security concern - we might see backstopping in that case, also it's really the only thing keeping the economy from contracting. i expect the downturn, if it comes, to be more like a megafire that burns white hot through fuel rather than the controlled burn we need, so I don't know that leaving it alone solves anything, given how many actors are actively meddling.
Maybe a normal healthy market isn't normal or healthy for people?
Why are we assuming a market is an inherent good and its needs are to be prioritized?
If a bunch of people might be reduced to poverty in old age and that's a sign of a healthy market, then I'm not super sold on this healthy market pitch...
Except bailouts.
What's your proposal for the people who lose their retirement?