I'm pretty sure I don't buy that. I think killing impacts most people, even - especially? - if it's kill or be killed. I've seen too much dysfunction that looks like PTSD in my (Viet Nam war) generation, never mind the WW II generation. And I don't know many vets.
Well, first off, I agree; there are a lot of people who get really messed up from killing in war. But, then again, that's a traumatic experience for, well, just about everyone. I've never killed someone, thank God, but, I've had sex once or twice, and, well, I didn't find it traumatic at all. It's trivial for me to compartmentalize that away where I think that killing someone would be difficult. I only use that as an example because it's the most extreme, lot of people have done it, and many of those people are able to compartmentalize it away from themselves and function normally after. And that experience, I'd guess, is far, far more devastating to someone than the experience of having sex.
Doesn’t really matter to me. You could be wired to want to drown kittens every weekend. But if you never act on that wiring then doesn’t matter. No kittens are being drowned.
Well, evolution didn't favor, as far as I can tell, downing kittens, so; don't think most of us are wired up to do that. Evolution did/does favor lots of sex, so, unsurprisingly, many more people are wired up to find sex a valuable pursuit.
But, your point stands; just because we're wired up to do something DOES NOT mean we have to do it. Especially if it's something grossly negative like cheating, we can resist our urges.
A good example of this, the vast majority of us are "wired up" to enjoy the taste of sugar/fat. Much like "sleep with anything that moves" has an evolutionary advantage, so does eating a lot of high calorie foods (looking back in history, of course, today, not so much). But that doesn't mean that we're all destined to morbid obesity because we can't control our urges.
However, that's probably a pretty good example because, well.. It should show you we're not very good at going against our wiring. 36% of America is obese, another 32% overweight. That wiring from the "old days" is causing us much harm today, but.. It's still there. However, there are 20-30% who aren't overweight or obese and are able to override their wiring. And I'm going to go out on a limb here and guess that those people don't often have Twinkies by the 1000 stocked in their closets, one of the surest ways to lose weight is to make sure you only have healthy food at home; IE, AVOID the temptation in the first place. If you don't, at least for a lot of people, the "wiring" will win.