It is immoral from almost any point of view to refuse to defend yourself and others from very grave and terrible threats, even as there are limits to the means that can be used in such defense.
“I grew up in a military family, and there's something about that military-style uniform, all cleaned up, a brutal control effort the military necessarily breeds.”
“Apply yourself. Get all the education you can, but then, by God, do something. Don't just stand there, make it happen.”