Not sure about world economic collapse but there are talks about China banning many Australian foodstuff as retaliation for Huawei Ban, like seafood, wheat, dairy and meat. This helps China meet the new USA demand for more primary access for trump supporters in American wheat belt and seafood along the coast.
At first I thought AS IF than realised why couldn’t China tariff Australian produce out of China. It is an easy way to make room for USA, by saying it’s because of Huawei.
China banned US Beef (mad cow so for ten years) recently lifted, Corn and Seaford was recently Tariff out of China and with “thawing” of trade war, which is forcing China to buy much much more US foodstuff .... Australia is on the chopping blocks.
remember there is plenty of alternatives to Australian foodstuff.