Zero, but that's not the same question. If something I think is unacceptable happens at a low rate, the fact that I think it's bad doesn't mean it's necessarily rational to change one's travel plans because of it, if the rate is low enough.
If I go to Iceland, there is some nonzero chance I'll be killed in a surprise volcanic eruption, but I wouldn't let that deter me from visiting Iceland.
The relatively high violent crime rate in US cities which was already present before the current administration is already a much more real reason not to visit the US than authoritarian border guards, although I'd argue even that would be a bit exaggerated.
Zero, but that's not the same question. If something I think is unacceptable happens at a low rate, the fact that I think it's bad doesn't mean it's necessarily rational to change one's travel plans because of it, if the rate is low enough.
If I go to Iceland, there is some nonzero chance I'll be killed in a surprise volcanic eruption, but I wouldn't let that deter me from visiting Iceland.
The relatively high violent crime rate in US cities which was already present before the current administration is already a much more real reason not to visit the US than authoritarian border guards, although I'd argue even that would be a bit exaggerated.