I was talking about non-European immigration, of course. But an immigration controls between the EU countries is also necessary to avoid the excess. In London, I believe that there are between 300000 and 400000 French. Imagine if 3 million of French people come to live in London. Not possible. London belongs to the British. I imagine if 3 million of Germans or Spaniards come to live in Paris ... a nightmare
Thank you for clarifying.
I'm pretty sure that we've been over this before, but nonEU migration is not something the EU encourages. Look up the Dublin convention where nonEU migrants can get sent back to the country they first landed in (ahem Italy and Greece in the main). Without it there would be an incentive for those countries to let migrants pass through to France etc illegally and then blocking their deportation back to their soil. Effectively what Turkey does, allow migrants to cross into Europe than refuse to have them back. The EU has tried to broker agreements between members to share the burden more equally. Merkle famously letting several hundred thousand refugees come to Germany, for which she was criticised by the likes of you. Yet if she hadn't they would have been stuck in the countries they had reached unable to go backwards or forwards.
If you think.thr migrant crisis is bad and the EU response muddled then wait until there is no EU response at all to see how bad it can get.
As for EU migration, you raise the prospect of 3million French in the UK, yet somehow despite there being a direct train link between Paris and London for over 20 years and nothing stopping any French citizen living to the UK......only 300,000 have managed to do it? At that rate it will take over 200 years for 3million French to come to the UK, except by then 2.4 million will have been there for over 40 years so could probably be fairly discribed as British by that point.
How fragile must French culture be that a few hundred thousand Spaniards or Germans can threaten the culture of over 65million?