See if you have a local pottery near you that could make a new lid to fit.
In comparison, grocery sales were hugely increased this past Christmas - https://www.kantar.com/uki/inspiration/fmcg/2024-wp-record-numbers-hit-the-shops-as-supermarkets-experience-busiest-christmas-since-2019 .
Perhaps messages about being eco conscious have moved some people away from spending on plastic tat and focused more on having lavish food for the Christmas period? Or does this figure not take into account inflation and this is just to do with food price inflation being higher than other sectors?
I’m a big fan of middle class ideals. Just have a look on Google maps, there’s more around than you might expect.