Some other things to think about vis a vis the consistency (or lack of same) in U.S. foreign policy.
Who here remembers when the Cold War was on? The U.S. and the USSR both had huge arsenals of missiles pre-targetted on each other, and always ready to fire. We Americans lived every day of our lives wondering when the bombs would fall. A lot of us didn't wonder if it would happen. We wondered when.
Back then, everybody wanted the Cold War stopped. And I don't mean just people in the U.S. or USSR either. Just about everybody worldwide wanted it stopped, because a whole lot of nations stood squarely in the crossfire. Or downwind of the blast sites.....
Well, now it's stopped. The Cold War is long over. And look at how human opinion has changed. Suddenly people are longing for the old days again. Now that people worldwide have had a taste of a unipolar world, with the United States on top of the pile and nobody to challenge it, people want a new superpower to counterbalance America.
People want the Cold War back.
Now, I'm pretty sure somebody's going to cry foul at this point, so lemme just nip that in the bud. To counterbalace the United States, you're going to have to have a nuclear superpower. Another nation that has nukes, and can keep up with the United States. You want balance? Then you're going to have a Cold War. It's unavoidable.
It all comes down to the old deal about the grass being greener on the other side of the fence. Before the Cold War ended, people looked around, saw everything that was wrong with the world, and wanted a change. After the Cold War ended, people looked around, saw everything that was wrong with the world, and wanted to change back.
And humans don't just do that with nuclear standoffs, either. We never seem truly happy on anything. Always, we're seeing what's wrong with the world. We vacillate endlessly from one policy to another, trying to fix everything at once, casting desperately about in search of a perfect world that simply does not exist.
But then, as that other old deal goes: bad news gets attention, doesn't it?