It already is. Many people that bought in early 2022 are walking away from their deposits. When they lose the ensuing lawsuit they may realize how dumb that decision was. If it was a first time buyer, they may get away with it as there isn't much to win in the lawsuit. Step up buyers could easily lose all the equity they have in their current house by being *****.
EDIT:
The simple solution to the above is to close on the property you agreed to buy at the price you agreed to pay. If you screwed up, that's your problem. Sell your car, cash out investments, do what it takes to make the deal close. If the market price has gone down, you are losing that delta anyway but one way you end up with a house you paid over market for, the other way you end up with no house and no money.