Because it annoys the citizens. Some don't like Immigrants because they feel they shall make The UK crowded.
you cant
u cant migrate in anoun
you cant
For the same reason any country is multi-racial - Immigration. People migrate to the UK from all over the planet - for various reasons. The same thing happens in other countries too.
you cant you can only do it 6 at a time and they cant have HMS
For Business
from London to UK
you cant you have to migrate
You cant, you have to migrate it.
You cant. You have to migrate it :)
you cant
you cant unless you migrate