Heh, I’ve heard this sort of thing before, and it has never made sense to me.
Homeowners only care about high prices coming down in a couple of situation. For example, if they have an extant mortgage, or if they are counting on cashing that equity in somehow - downsizing for retirement, or using it as a piggy-bank for some sort of home equity financing.
People who actually own their houses and who are still working would love home prices to come down. Why?
First, the yearly tax they pay on their houses is loosely tied to the average value. Home prices go up, they pay more. Prices go down, they pay less.
More significantly - home owners may well want a better home - larger, in a nicer area, etc. If home prices go down across the board, this works out well for them. Sure the value of their own house goes down, but the value of the more expensive house they wish to buy goes down even more. They save a lot of cash, since what they care about is the total difference in price between the house they own and the house they want.
See, if you own your house outright, the price you could get for it is only of interest if you actually cash it in for some reason, or access its equity. If you don’t plan to, you don’t care (except of course for whatever effect that prices have on the economy as a whole). If you do plan to cash in, then which way you want prices to go depends on your plans - if to downsize, you want prices high; if to upsize, you want them low.