As I've said elsewhere, that's not how markets work. Supply is balanced with demand. Disrupting supply while keeping demand constant will result in an increase in prices and less stock available to purchase. Add in irrational hoarding when people see fewer things available, and we could have a real problem on our hands. This isn't even addressing the fact that not everything coming from China are items available for immediate sale; many are components used in other products. If shelves don't go empty, it's likely to be the result of the price of everything increasing to quell demand.