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.
I dont believe that no matter how bad things are in america there are "a lot" of people that go to the military because the choice is "enlist or not survive(or struggle greaty for it)". Especially true the further back you go. The choice almost never is between army and starving. Its between army and a sucky to very sucky job (that will still allow you better living conditions than the people you will opress and help kill and emiserate while in the army.