Noblesse oblige is a biosphere encompassing responsibility to be extended as far as memetic-kin-species- compatibility permits (and possibly further, without risking self destruction - this is the part that unchecked migration gets wrong).
Would you suppress world evolution through war or more elegant means to maintain class hierarchies?
As I said, most of the world is already a family, we all watch the same tv shows and use the same emojis, the metalayer is already installed. If that’s the case, and the people are against war - who is the enemy?