The UK can do that. The most likely consequence will be the EU not accepting those trade terms. As a consequence, almost all trade with the UK will stop and tra

The UK can do that. The most likely consequence will be the EU not accepting those trade terms. As a consequence, almost all trade with the UK will stop and trade with the UK will effectively be under near embargo due to the high tarrifs from parts of the world (the EU and areas it has trade agreements with).