@glutesthatsalute You're getting our young doctors (who we spent £200k to train) because of our loose immigration policy which actually makes it easier for overseas doctors to get the job than our own newly qualified doctors. You must see that this is another area we need to tighten up, to prioritise them? Hopefully that is next.
I'll be interested to see a better breakdown of which students are choosing not to come to the UK. You're right that we absolutely want to keep inviting genuine postgraduate students - and if we are losing them back to your country then that's our loss and your gain.
It has become unbalanced though - and a slight rebalancing is no bad thing. A friend in research has told me that in recent years she now has almost entirely international postgrads coming to her Universiry. They're great students, but we need our own young people to take those top opportunities too. A mix is healthy. Yes, it will cost more to fund universities - but this is the mistake we keep making: accepting some cash in hand now, and selling out our future.
The student visas we really need to stop though is those being sold not as an educational opportunity but as a route for the whole family into the country. You can't pretend that isn't happening in large numbers. The trick is which levers to pull in order to stop that whilst still keeping (enough) real, high-level incoming students.
I work with many colleagues who are fairly recent immigrants. I value them hugely, and of course no one sees them as spongers. Ironically, one of my colleagues who I most want to stay is considering moving because of our high tax regime, which he sees as caused by overly generous social provision removing the incentive to work. He also sees uncontrolled migration and a lack of protection of our training and work opportunities for the existing population as a huge threat to the UK's future prosperity. He was committed to the UK - kids at school, fully integrated into UK culture. What is making him reconsider is concern for the UK's economy - due to our choices - not any imagined sentiment against him. He knows he will never use benefits or be out of a job.
To conflate concern over huge, uncontrolled, economically costly low-skilled immigration with negativity towards valued, high-skilled colleagues is ridiculously reductive.