We have magnitudes more trade with China than the USA. We are one of the few countries that buy more USA stuff than we sell to them. The only reason to stick with the USA would be if we trust them for defence reasons. What’s happening in Ukraine means we can’t. So it would likely be an own goal for Trump as we’d have to choose China over USA. The libs would go nuts, due to racism. We’d be objectively worse off, as an unreliable defence partner is still a partner, but if we ditched trade with China, our economy would collapse overnight.