Earlier quoted context omitted.
Trump now has knobs he alone (unless congress stops him) can turn to save or wreck any country, even specific businesses and people (i.e. those that don’t surrender more power to him). For a power obsessed, extreme narcissist, that is worth more than economic success.
The only country he is wrecking is the US. Every other country can still happily trade with every other country. Sure, for some countries it will hurt short term, but long term they will all just increase trade between each other and do perfectly fine. China’s exports to the US are only 7% of their GDP. Even if all that went to zero, they’ll still have the highest GDP soon enough.
I mean, sortof. Unfortunately both the EU/China/everyone else has been running an export led growth strategy which relies on the US consumer buying their exports.
So, buckle up everyone, it's gonna be a wild ride (and maybe read Trade Wars are Class Wars to understand where the administration may be coming from).