They are unsafe for regular people. They are not Europe anymore after 7pm.
Yes, the implications are that people will democratically vote to stop democracy. That is not good for a country/unión.
They won't be the mayority, but they can surely negativily change a society without being a majority.
WILL ALL THE NON EUROPEANS FK OFF PLZ? OR VISIT MARSEILLE AFTER 7PM FIRST. THNX