If you are to compete then there must be something to compete over. If there is something to compete over then there is a limited amount of it to go around. If there is a limited amount of it to go around then someone can get all of it. That is literally what competition means.
It tell me you have not thought about it enough. It is absolutely limits. There is a finite amount of everything on this planet. And at the level that global corporations compete on those limits are important.
Well that explains it, you don't understand what competition in capitalism is.
Competition does not mean there is a winner or loser like a sport. I will use an example.
Country A and Country B both want access to a resource. Both countries want to use said resource to build cars. Country A has infrastructure in place and can use the resource more efficiently than country B. The expected revenue per car is going to be the same as market forces have set the price per car already. Country A is likely to get the resource to make cars, because it can offer a higher price for the resource than country B because its cost of production is lower because of efficiency. If country A can meet all of the markets demand, then country A is likely to get all of the resource. You would then say that country B has "lost" and gets nothing. Except, we dont live in that kind of world.
What you are thinking of is mercantilism. Free trade means everyone is allowed to build something, and everyone is allowed to buy something. So, now country A has made lots of cars. The market for those cars is not just for country A, but country B as well. This means that the increase in productivity is used by both countries. As country B gets access to cars from country A, they increase their ability to produce goods. As country A benefits by selling, country benefits by buying and increasing their productivity.
Not all goods do the same thing. If I buy a movie ticket, I don't increase my utility in the same way as if I buy a car. Toyota benefits buy selling me a car, but I benefit by buying the car too. With a car, I can now travel greater distances to a place of employment that would otherwise be out of my reach.
When China makes a good, they have to sell it at a price that is competitive. China makes money by selling, but we benefit by buying. We get goods, while china gets money. Its not like china can repo our goods either.