I absoloutley agree with you but it’s not going to happen because European Union is one confederation..
…English requirement for Euros will be like telling a Punjabi he will have to learn Pashto to settle in Pashtunkhwa.
Ideally there should be a complete ban on immigration in about a year or twos time and the foreigners already here should integrate/assimilate better. That way rightwing paranoid facists will probably calm down too.