If it's not an investment property then homeowners don't get any benefits from higher home value other than a larger tax bill.
Nope[0]
[0] https://en.wikipedia.org/wiki/1978_California_Proposition_13
Roughly its monthly payment => a third of 90-110% of AMI.
(Or if you retire to a country with a lower cost-of-living and no housing bubble, buying a similarly-sized house there for lower than the original purchase-price of your home in the US. Which is exactly how every retiree you see in e.g. Thailand lives like they do: they're not living off a pension; they're living off the "nest egg" they naturally accumulated by holding a house in the West for 20+ years before selling it to move there.)
You've never heard of a HELOC?
The person with a $1.8M property holds a very valuable illiquid asset. They cannot convert the value to cash trivially (they could perhaps take out a home equity credit or remortgage the house). Effectively none of the value of asset is available to them to meet any other needs, and will only be fully realized when the house (their home) is sold.
The person who can pay the mortgage on a $1.8M property has substantial income and/or cash reserves, which are liquid assets and thus distinctly different from the property owned by the previously discussed person. They may not have a net worth of $1.8M but they are much more easily able to shift financial resources aound to meet their needs.
But there are situations where the HELOC will either be hard to get. For example, you may own the house outright but have very very low income. Or the bank may not be willing to view the land in the same light as potential developers.
"House rich, cash poor" is generally convertible into "have mortgage, and cash", but it is still a distinct condition from "Income rich, have mortgage", especially for low income folks.
Im a homeowner and this is just ludicrous. Rich? Please. This kind of added drama makes me discount everything you say.
> This is a profoundly subjective view, because homeowners could turn around and accuse new residents of enriching themselves at the expense of homeowners
Nothing is happening “at the expense of the homeowners.” The homeowners are the ones getting rich.