Yes, that's basically the rationale behind not closing borders in case of a pandemic: You can't close all the holes. Someone, and inevitably the pathogen with t

Yes, that's basically the rationale behind not closing borders in case of a pandemic: You can't close all the holes. Someone, and inevitably the pathogen with them, will pass through. However, and very much absurdly, the same people and organisations opposing closing borders were those supporting prolonged and repeated lockdowns, which pretty much puts you in the same situation, just with no clearly defined perimeter to control. Closing borders will just buy you additional time. That's it. Imposing lockdowns on the other hand in the end will achieve nothing.