Re: "stopped at any airport [..] and extradited by the judiciary there"
Can I just mention the concept 'Real World' !!!
Do you really think what you wrote is an any way true ???
I am more than sure that 'effectively' that is exactly what happens.
Mr Trump (or some senior Representative) phones Mr X leader of Foreign country Y and asks very politely if they could detain 'Bad Guy' Z for very good and compelling reasons (to the US of A.).
What do you think the response will be if you say 'NO!', so Mr X requests further information and kicks it to someones Desk.
At this point as the debate continues the US of A makes the odd mention of how much trade it does with Country Y and how it would be unfortunate if future trade deals and tariffs should become a problem etc etc.
Calculations are made and suddenly 'Bad Guy' Z is now under investigation for suspected crimes in Country Y and/or the US of A. etc etc.
It is now in the hands of the legal people (Judges & Courts etc :) ) and the govt will allow the end result to be determined by the fair and impartial legal system (which at no point will be advised of the result that would be most favoured by Mr. Y and the Govt.)
At this point usually the US of A wins by virtue of overwhelming forces.
It just so happens that there is a lack of support for Trump and his 'Bouncy Castle full of Clowns' because of his prior actions which have been seen to make the world political stage much more unstable.
In reality China, Russia and US of A 'throw' their weight around to get what they want.
US of A may be more subtle or quiet about it but they are still a Superpower (Economic & Military) and countries are influenced.
That is the 'Real World'. :)