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.
It's really dangerous to underestimate your enemy. The Left in USA is not going to take power without a civil war, and it is really important to prepare for it - building organizations, training in tactics and weapon use, and if you could find soldiers who could teach you how to use artillery and tanks, than it would be even better.