The only mass exit I think that could occur would be caused by some economic catastrophe and it would be the leveraged players being forced most likely.
That said I do think there are a lot of LL who are leveraged to some degree, but most likely it will be the leveraged owner occupiers who will be hurt the worst in such an event.
I don’t see interest rates spiking all of a sudden, I think it will be a very gradual affair Accompanied by equal or more inflation.
All just my opinion of course
Also I will add an economic catastrophe could be a very local event (Natural disaster, qcom decides it would be better off moving to Mexico just kidding).
But it could be a very local thing as well.