I've met these so-called "Conservative" Americans. They're absolute maniacs. When you think what sort of country Germany became in the 30s and 40s, its not at all hard to imagine a waning America going the same way.
I remember trying to do business with one. It was a difficult negotiation, not least because there was the possibility he was a crook. So I had to be pretty forceful in discussions. At the end I said, "I hope u don't mind me being so blunt like this". His reply was "I wouldn't respect you if you weren't".
That encapsulated the whole situation. He was someone who would only respect a greater force, or even someone who would bully and cheat, the way he had grown accustomed to.
A genuine "Conservative" of that type would have no problems pushing us all towards WW3.
If it happened, he'd blame it all on "liberals", politicians, or "the enemies of freedom". etc. They're completely detached from any form of reality.
There's a 2nd problem with all of this. And thats the question of who "lost" the Cold War, and who will "lose" future ones. I look at it this way. In 1990, I remember China and India were poor, REALLY poor compared to the US's materialism and also compared to the USSR. But in just 15 yrs, both these Asian nations moved towards genuine superpower status. In that time they're leapt 40, maybe 50 yrs forward in many technologies esp military tech.
I can't help but feel both the US and Russia have paid for the last arms race, by losing some of their massive advantage. But the difference between them is that Russia is renewing itself, and not engulfed in hubris and Nationalist narcissism. Now its time for America to start looking at itself a bit, IMO...