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.
Also of note for 1910 soldier was it was forced conscription of youth to fight in a senseless meat grinder via trenches. Joining the military to get a cheap college degree and live a middle class lifestyle while bombing out a town somewhere in Iraq or Afghanistan is nowhere near fucking comparable (if you asked many of the Russian bottom wrung soldiers in WWI if they wanted to go home I'd bet a majority would say "fuck yes get me out of here so I can return to my village").