I mean if I was just put on a flight back (for a tweet they found on my phone or such), that'd be kind of bearable. At least one visitor from the UK got locked up in a facility for a week.
If you're talking about Rebecca Burke, it was almost three weeks. All for something that was at worst a naive understanding of the visa she needed.
https://www.independent.co.uk/travel/news-and-advice/rebecca...
No one wants to be detained.
People who are spending thousands and tens of thousands of dollars to travel are fine if they need to spend a few hundreds additional ro fly back and cancel their vacation. Or sucks but it’s in the realm of the risks you take with international travel.
However, being detained, even for 1 day, and treated like a criminal is something none of these folks want.
https://www.sportskeeda.com/mma/news-update-u-s-federal-pris...
"UPDATE: I just spoke with coach Renato Subotic for a few minutes. He says he was detained at FDC Honolulu, which is a federal prison facility. He says he has no criminal record and it was a simple visa application issue. Interview later this week."
Not gonna happen this year, probably the next 3 years or more.
Because it worked so well in the last years. /s