Some cultures make a good go of it, some don't. But this isn't about what's best for them. It's about *our* safety.
Ideally, we should first occupy the problematic nations, then systematically remake the cultures of the occupied countries in such a radical way that they become capable of real democracy.
It worked in Japan. But then, we had to bomb their cities to dust first. Let's hope it doesn't come to that, but... whatever it takes.