Galaxies and aliens

Some people fear the possibility of aliens enslaving us. However, this is based on the reality that we have done it to ourselves. Fear of aliens does not derive from knowledge of aliens itself but actual knowledge of ourselves. Any time a more technologically advanced civilization came upon a less advanced one, it did not go well for the less advanced civilization. North America and the Europeans, South America and the Spanish, Australia and the Brits and so on. The factual knowledge of this leads people into thinking that aliens would behave the same way. Maybe not all life in the Universe possesses the cruel instinct of domination that we have...

Sociologically it has been argued that the act of colonizing is self-limiting. Human expansion, governed by a colonizing country or entity, reaches a plateau unless war is involved. The very act of wanting to colonize is self-limiting against successful colonization of a location. This is because if something is deeply desired (such as expanding and colonizing another country), it breeds an attitude of violence and war.

If somebody was to colonize the Galaxy then, it may be that the very kind of civilization that could peacefully colonize the Galaxy is not the one that would colonize the Galaxy in the first place.
That's all.

Inspired by Neil deGrasse Tyson.