Quite remarkably this ABC report on empty shelves is not far away from outlining the truth. They are still obfuscating some of the predictable reasons, and they completely ignore the vaccination mandate aspect that is going to worsen the issue, but they are nibbling the edges, nonetheless.
The backward-looking comparative statistics they cite, “15% shortage for food and beverages” overall, are nonsense. The severity of unavailable products is much higher than that. You will note from your own store visits the most unavailable products are the manufactured food and heavily processed products.
The raw material shortage inside the retail manufacturing supply chain path, combined with the increased demand on those manufactured sectors, is the direct cause of the manufactured food shortage. {Go Deep} [Example: a high demand for citric acid means complex foods that use citrus flavorings (ie. sports drinks) are in short supply. Chase that backward, and you see shortages in citrus & higher citrus costs, etc.]
Each seemingly small issue creates another small issue, which creates another small issue, which ultimately pokes holes in the supply. Poke enough holes in enough small categories from manufactured condiments to manufactured drinks, to manufactured cereals, pasta, grains, soups, pet foods, and the complex food processing system overall begins to show the larger problem. It’s a system collapse by a thousand paper cuts.
♦ Forty-five percent (45%) of Democrats favor the government forcing unvaccinated people into federal quarantine camps if they refuse the COVID-19 vaccine.

Under Australian law, Immigration Minister Hawke has almost unfettered powers to cancel a visa making any legal challenge to the decision very difficult. The official statement from Alex Hawke is 