The problem is that even if ninety nine out of one hundred space alien civilizations are all about peace and love, it only takes one warlike civilization to do us in....
If there are 99 civilizations of Space Hippies and one civilization of Space Orcs ... pretty soon there won’t be 99 civilizations of Space Hippies. They’ll either become Space Samurai or get wiped out.
We’d best be prepared to be Space Samurai.