@Indrid-Cold Survival of the fittest inevitably leads to capitalism, capitalism leads to societal collapse.
What if there be such a planet out there where history has evolved to the perfect colony? I want to suggest a unified population where science has broken through all of the political barriers. Royalty is dependent on age. The bloodline of only longest surviving families are deemed holy. (No appointed ruler, no war.) They have now ventured to colonizing neighboring planets as no star lasts forever. They must keep going for the safety and perseverance of all that they know. A planet to them will be what a hive is to a bumblebee. They have reached a new evolutionary group where any such like them are able to approach each other. This will of course reintroduce politics and that may lead to merging or even intergalactic war.
I have suggested a lot I know, but the universe is a big place.