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.
The Space Hippies will be fine—as long as they are not dumb enough to send out those radio signals giving their location....
Even the most primitive animals know that camouflage is the first rule of survival.