I too feel like that a lot of the time. The problem with using game theory, is that game theory only works for a zero sum game. This isn't a zero sum game. Making us believe that is part of the propaganda. Helping someone else to a better life does not make your life worse. Our whole success as a species is proof plenty of that. A group of people helping each other is more successful than being alone and trying to fend for yourself. The propaganda is trying to make us forget that. Unfortunately, our whole economic system is built like it is a zero sum game and that is reflected in the values of society and the US is perhaps the most clear cut example of this. It is all lies. We must, however, widen the scope of our thinking. The community isn't just your little patch of dirt. It is the whole world. Helping another part of the world or other people will make it better for you as well in the long run. Even if it temporarily inconveniences you, welcoming people who can't survive in their patch of dirt to yours, will strengthen you in the long run. Even better is to stop exploiting other people so they can have a good life at home and doesn't need to work 18 hour shifts to make plastic shit we don't even need. It's not a zero sum game and we need to stop believing that it is.