America isn't even the most democratic country in the Americas, but that's clearly not the point they're making.
If the title was "...end of world democracy" you'd have a point but given how much fascistic rhetoric and policy has increased around the world since trunpism it's fair to say many countries are following the US lead here.
Yes, but also from an implementation perspective: if I'm making code that might kill somebody if it fails, I want it to be as deterministic and simple as possible. Under no circumstances do I want it: