Didn't Ukraine just did it unilaterally by refusing its citizens abroad consular services? What makes them leave is not that they don't have visas, but that their passports aren't getting prolonged. Furthermore, several EU countries already declared that they can stay even without valid passport.
Many nations have stopped consular services and diplomatic services, and have stop renewing visas. So Ukrainians are forced to return to Ukraine
Didn't Ukraine just did it unilaterally by refusing its citizens abroad consular services? What makes them leave is not that they don't have visas, but that their passports aren't getting prolonged. Furthermore, several EU countries already declared that they can stay even without valid passport.