Cactus you say:-
Just like the human apes, there is an order of aggressive types, and some primates in the human ranks, some have that lesser evolved sense of understanding,

True, but even the more educated so called 1st world humans, will sanction the government to send troops to war if they feel territorially threatened.

For instance, the Germans, a first world well educated society, felt territorially threatened by the Jews when Germany went bankrupt in the great depression. 6million Germans lost their jobs when all the industries closed down. Until then they were reasonably tolerant of the Jews.
At least 2 or 3 years before Hitler came to power, Germans were putting all the Jewish people out of jobs and replacing them with Germans. Also Germans stopped the Jews from competeing with the German shops and businesses that still remained open, by standing in front of those businesses and refusing to let anyone go in. They then voted Hitler into power to enshrine these agressive territorial behaviours into the law. Convienently after the war they did not admit to their territorial aggression and blamed it all solely on Hitler.

To the Germans it was literally a choice between their own children starving or the Jews.
I'm not condoning their horrific cruelty to the Jews. Maybe they could have just driven them from the country instead of killing them in gas ovens etc.

Also, Japan, another highly educated, modern society. In the years leading up to world war 2 they invaded China, stole the territorial resources of the lucrative mines in Manchuria and at the same time ethnically cleansed 15million Chinese.
Hitler only killed approximately 9million Jews, the Japanese killed nearly double that in the late 1930's just before the WW2 started but this is hardly ever mentioned because they did not use Gas ovens only bullets and bayonets and tanks.

Education does not make a difference to the human animal's biological programming to control territory. Nature is responsible for that programming in all species.