They have to start stamping and checking passports on reentry. It has been great to go across the EU as if one would go from NJ to NY, but that has to change so they can track who left, and where they've been when they come back, and their whereabouts recorded.
France clsed its borders. That's a joke. You can cross from France into Switzerland, and back, for example at every road that conncts the two, and you wouldn't even know you are in a different country, initially, other than that Switzerland is far cleaner, and there are no cars paked on sidewalks.
It's such a shame these rats are causing such problems. Maybe we have to get a little less civilized for a few years until we wipe them.