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.
Because we live in reality as it exists right now. If you are faced with the choice of joining the Waffen SS or not joining the Waffen SS, the moral choice is the latter.
No argument there, I just think saying people should be in poverty for the sake of their own morality is kinda fucked up. Poverty isn't an excuse to join the military, but the prospect of someone doing so certainly isn't an excuse to say that someone should stay poor. They're just morally better off not joining. Also let's be real a lot of people who did join are still poor so it did jack shit for them.