This is a real issue in my community (as is the case of pretty much every community). All the older homeowners and younger/middle aged middle class yuppies love to talk about how they care for the housing crisis for us poorer youth, but then anytime a plan to address it comes up it's all "muh property values, muh investment". It should be obvious to anyone that for the price to go down for buyers, the sellers must sell for less but they all want to sell absurdly high and then buy another home for low.
Yes. There's a lot of flowery talk that ends in "market forces". Everyone wants to sell at market value even though there's no requirement to do so. It's in everyone's interest for that to be the case; the home seller gets the most money, the realtor gets the biggest commission, and the price is maintained for every other homeowner in the area. There's no incentive other than good will and one homeowner undercutting the market is just going to make it that much more profitable for the scalper than ends up buying it.