A conversation with some of my book characters

I was talking to a Flarconean General This morning.  We figure Humans are one of the most hostile species in the known Universe because each Human is so much different than the next Human.  Most species in the Universe that live on the same planet live in one culture with the same beliefs.  Humans thrive on conflict.  Our creation level goes way up when we are at war.  We are at our most efficient when we are threatened.  What do you think?