The word that sticks out is "breeds". Heinlein was of his time. I think that Paul Verhoven's satire on the very work to which you refer says it all. In it, the

The word that sticks out is "breeds". Heinlein was of his time. I think that Paul Verhoven's satire on the very work to which you refer says it all. In it, the military is made to appear to be an elaborate human sacrifice ... cult run on survivor bias, in the service of creating a self-sustaining elite. The justification for slaughtering "bugs" is never supported. The master stroke is that the bugs are inherently disgusting. Violence has its uses. But institutional violence uses those parts of human behavior that make us ... crazy. CSPAN 3 has the Fuulbright Vietnam hearings available. They're worth watching.