Earlier quoted context omitted.
The world is still consuming. Even if the US tariffs everyone else, they still trade amongst themselves. The real risk to our economy is that the rest of the world stops paying for our services and cultural exports.
Trump is going to try to pressure other countries into putting tariffs on China etc in return for a trade deal with the USA. Several (EU, Japan and more) have said they won't agree to this.
Bipolar bully on top just generates random chaos, the best course is to cut oneself off as much as possible as quickly as possible, which is clearly happening behind the curtains