There is no number of foreigners that is unacceptable to sacrifice for a middle class livelihood. Anti-cop because they can imagine a scenario where a cop inconveniences them. These principles don't apply to the Waffen SS because they can't imagine a soldier personally inconveniencing them and, of course, foreigners aren't really humans.
A former teacher of mine was an army vet and said what surprised him most about boot camp was how much emphasis there is on learning how to kill another human being.
He knew that was silly - obviously it's the army, what else would you be learning - but it still surprised him that his job as a soldier was 99% learning how to kill people.