So let them compete, isn't that the idea? Countries and economies can compete with each other just like companies do. China can subsidize their EVs, America can subsidize its defense industry and corn, Europe can subsidize cheese and wine or whatever it is they make, each country specializes and offers the best product at the cheapest prices for consumers. Or make WTO have more 'stick' and less carrot so we can make countries stop subsidizing their own industries.
Either way, a return to trade tariffs and isolationism doesn't sound great to me. It sounds like everything getting more expensive and less efficient (and therefore, more environmentally wasteful). It also sounds like countries being less dependent on each other, which means less reason to not go to war. We live in a very rare, peaceful time in human history. International trade (and massive technological/scientific breakthroughs) are a major part of that.