See signature campaign, not everyone get accepted, as simple as that.
If one country has a failing economy and they can no longer produce high quality products and their trade is losing significance then another country can sweep in and give better offers. This is simply the reality and so economy should not have emotions in because it will not do you good. If you want to improve your financial state, you have to compete.
Personally I think this is a soft competition, it's fair the country only want to get the high quality products, unfortunately this country can't meet the standard. What about other country hijacking in the last minute before the trade deal? how about other country intentionally harm the product? how about other country making a false information to ruin the trade? etc.
These thing I called the real competition, even you're right, other people might see you're wrong.