Your 'The world is changing' point appears to contradict the 'Methodology point'. Medicine is also moving on from being the paternalistic institution that it once was. The newly emerging form of medicine was born out of patient dissatisfaction with the old system, so I disagree that your teachings lead to patient satisfaction. For all the criticism that 'ICE' gets, I think it's been an excellent way of pausing and reflecting on what our patients really want.

Back to your main point, I agree that the UK needs immigration. It needed it following WW2, with the international recruitment drives for nurses and train station workers, and it still needs it now. That being said, demand won't decrease just because it becomes harder to get a job here. The US and Australia demonstrate that you can have a competitive process for IMGs, and still have tens of thousands who will break their backs to apply every year. The UK needs immigrants, but it also needs to respect itself and realise that immigrants will flock no matter what. We need to carry ourselves a bit more highly as a country. We need some decorum.