A Faustian bargain if there ever was one. But then again most political contests are like that.
I'm a bit curious, what sort of national security were you looking for? Is there a particular enemy you're concerned about? As far as your neighbors go, our nations are much less secure now that it appears the United States of America is as likely to invade as some other foreign power.
Who is this "you" you are referring to? I've heard a lot of conservative voices talk as if there's some sort of cohesive liberal group or ideology, but no such thing exists. I mean there's the Democrat party, but they are really neither liberal nor some unified ideology. I'm an extremely conservative person, but I'm sure you'd probably want to stick me in the "liberals" label. Before Trump came along, I was hard pressed to see any real difference between the GOP and the Democrat Party in terms of any policies that actually mattered to the country.
I'm not sure who "most conservatives" are, but if you are correct, that seems to indicate there's a distinct lack of empathy among such people. Perhaps you should think about liberals more and why they might feel the way they do. I know plenty of "liberal" people who would do well to do the same thing. They can all still disagree but at least knowing why they disagree is helpful and you might find you agree more than you disagree.