That is because there is no such animal. Might be in the future but probably not.
As long as there are nation states each one will try to promote their countries interest above that of the other. To expect otherwise is to ignore human nature entirely.
Remove it out of the realm of economics and move it into the arena of sports. Most counties in the world are not sending "Amateurs" to the Olympics. They say they are but their amateurs are also being supported by "sports clubs" that allow them to practice every day. Our Amateurs work at Home Depot and practice when they can.
Many people argue that this is ok because we still take home more gold medals than any other country. It is perfectly ok for them to give their guys a "little boost".
And when people stand up and say, no, it really is not ok they get yelled at by their own countrymen.
It is the same with economics. It is perfectly ok for them to support their industries and dump on our markets to drive our guys out of business. We just have to be "more efficient" and if those businesses die it is ok. I note that it is never the economists that suffer.
I will always remember the time the founders of the company I worked for went to Washington to ask Congress to do something about our patients being stolen. These three guys who had built a world leader company from nothing were told to go home and just invent more stuff. They had confidence that we could keep ahead of the people who were stealing from us. In less then five years the company was shuttered. You can not innovate fast enough to keep ahead of the thieves.
That is because there is no such animal. Might be in the future but probably not.
I’d say we’re getting pretty close to it.