Ready for a live experiment to check what you'd do when its all in?
I guess most here have a plan B and/or somewhere they'd at least want to check out on the ground for an extended period of time.
Now, for this to work well don't check anything online once you start :-)
Choose your country B. Then imagine you're there and things go real bad...
Maybe people with the wrong passports are executed in the streets, maybe hot war breaks out, maybe the people rise up, and you're definitely on the wrong end of the whole thing.
You have to get out. Where do you go to? You need to decide ASAP, ideally within maximum a few hours!
Would be great with answers that are much less well informed than we often get here on SN, since that often will be the very nature of real life situations as described...