That expectation only holds together if you think of consumers as a single monolithic cohort. But prices can stay high and price out most consumers as long as there is a minority of rich ones still able to afford it:
https://www.oxfordeconomics.com/resource/bifurcated-how-the-...
How many bags of rice do rich people buy on average, would you say?
Like they are gonna buy all the flour and tshirts at high prices?
The op didn't say that scarce goods would become something only the rich could afford, they said no one would buy anything.