An interesting phenomenon
Problem.
Society is always bothered by having something to hate, by having something to point fingers at and say that it's bad. We've had this since the beginning of time and it's helped us evolve through competition. Let's say you have two parties: the first party supports idea A and the second party supports idea B. Both of these are in direct competition over which idea is better. Society needs this as it always needs to support a party in a competition, because as we've seen in the past, the competitive nature of people is ultimately their best form of entertainment. We've seen this kind of entertainment through politics, sports and even brand competition. This isn't always a bad thing because it forces those two said parties to compete, therefore they work on providing the most valuable arguments to support their ideas, both doing excellent work. But then, idea A being the superior one, the first party wins the competition over the second party. So that's when the culling happens: the second party suffers big damages brought by the first party due to exit loss. Not only that, but if the parties are present in the same community, the community gets divided, therefore easier to control. With that being said, we have two problems: destruction of losing team and division.
Solution?
I was wondering, if competition brings these many advantages and if competition, especially in the same community, tends to have this negative impact on the community and the losing team, wouldn't the best option be to have the opposing party outside of the community and preferably an imaginary one? We've seen the effects of an outside-of-the-community opposing party in a competition during the Cold War and USA becoming a global powerhouse is a true evidence that it works. But: after the Cold War, Russia suffered huge damages, and from an impersonal point of view, this is a loss for efficiency. So if the a community were to unite as a party and have an outside-of-the-community opposing party, just as USA had during the Cold War, it would improve the efficiency of the party, but have damaging effects on the other party. Therefore, by having an imaginary other party, the only thing that remains is the efficiency of the initial party which is consisting of the entire community. Would such a bogeyman prove to be extremely useful to a community? We really need to find this out. If anyone knows if such an event happened in history, I'd love to hear it so I can study it. In the meantime I'll look for one and if I can't find such an event, I hope I'll try to make one in real life pretty soon so I can confirm this.