More annoying than that. Try hiring software engineers. When I started working in London 15 years ago my colleagues were from a mixture of counties across the EU, easily greater than 50%. Now it's rare to see a CV from outside the UK except for a perhaps people from India.
There's no problem with them. The problem for UK is that the other people who could have worked in the UK and produce value in the country, have left and now contribute to other countries' economy.
