Ecommerce of millions of people are facing a huge disruption.

Think of Brexit. Commerce still happens between the UK and Europe, but there is a massive show-stopping level of friction now because people need to do Customs. That is a lot of paperwork. Millions of people are not used to this and many small businesses will get wiped out.

And this is worse than Brexit. As in that case both sides had very clear rules and processes already in place. It was significant new overhead and there might not have been border capacity. But at least how everything could be done was clear.