We need to go after these people hard because they are collapsing our civilization. There need to be punitive actions that correct the market and drive it back to something that actually produces people living in homes for a low price and development moving in a resilient, frankly boring manner. This in turn produces a populace with more free time, a requirement for training & education, something that will have to be done with increasing frequency as time goes on. This drives wages up naturally, as more people can choose to work less or not work. This shrinks sustenance & panic borrowing, which is another reason FIRE likes keeping us on their hook. This stops much property crime, which shrinks the need for police forces, jails, & the circus of pornographically perverse incentives that surround our criminal justice system.
In no uncertain terms let me say this: if we tanked the price of housing, tanked the rental market, and got humans into houses instead of some wealth-dreaming deluded landlord or scummy bank that wants to reap what they never sow, we could easily transition into the future we desire. The loss people fear with this action isn't actually a fear of the loss of wealth, it is the fear of losing the ease-of-mind and projected future peace associated with ownership of the asset. We would do well to begin considering how to provide that for one another without harming one another.
Why not just eliminate private property all together? Everyone should just rent stuff from the government.
That is something that could be done, to a degree.
You can increase transfer taxes and offer a partial refund over the course of some number of years, provided that the home has the homeowner exemption in place.
Increase the property tax rate while also increasing the homeowner exemption so that the total tax paid is the same as it was before.
Etc.
If tomorrow a law came about that said 'you can own no more than one home, full stop', watch how many renters buy their first home on firesale.
If you limited home purchases to say, one per year or two, it would open back up the lower cost market. Not every house needs to be flipped.