Earlier quoted context omitted.
(Not the person you originally replied to). 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…
some nonzero chance I'll be killed in a surprise volcanic eruption Why would you compare an unpredictable natural risk with one stemming from human behavior and government policy? This is like saying speeding limits are a bad idea because some people are killed by lightning.
By the way, I never said anything like "power tripping pro-MAGA border guards are okay because there are volcanoes in Iceland", so your lightning vs. speed limits analogy isn't relevant.