People are staying away from an oligarchy where habeas corpus has been suspended for a wide range of situations, and that results in extradition without an option of release to El Salvador. That's the obvious bit the rest of us know and can see and TFA draws a line to that you can't see yet.

Tourism is not down in other countries. Migrants/asylum seekers don't typically fly in by plane to the top 8 airports in the US, and those that do, do not do so in numbers anywhere near large enough to account for the change in numbers.