It's fine to criticize facets of a culture, but this isn't a very intelligent critique, it's just rude. On the "war" thing - the culture of many Americans has

It's fine to criticize facets of a culture, but this isn't a very intelligent critique, it's just rude. On the "war" thing - the culture of many Americans has a martial bent to it, which is why things like "war" made its way into a lot of our idioms and phrases and way of thinking. It's not bad writing just because your cultural mode of thought doesn't consider "war" as an acceptable metaphor or idiom. Martial cultures don't need to "get a grip" any more than scholarly or pastoral ones need to. Culture is self-preserving and so the martial aspects of ours aren't going away anytime soon, so I suggest you find a way to be more tolerant and understanding of it.