I would actually agree with that. But you said "appropriately violent", which violent crime is not. Defending your nation from invading rape apes, is.
Yeah but this is a full package you're buying into. Cannot just take parts.
Men that return home from war are often super violent and cannot readapt to "normal" society. Societies like ours in the West are soft, fat, pudgy and pacified, and if you check polls, most men (including myself...) would not pick up weapons if some larger country invaded, and would rather skip border further to the West or something.
This is not natural, this is a disease that we brought upon ourselves with this hippy way of thinking and rules that put kids on meds so they are not too spergy and so on.
As for your question about niggers, at dishing out violence, yes they tend to be "better". We would still outmatch them because of technology, but if/when they will get their hands on it, they will treat Europeans mercilessly and we will be unprepared.
Also, even with technology as a crutch, it's still not good.
Your thinking is highly suspicious and in demand of a reprogramming.