" The tragedy now is that we have lost control over the outflow from the country of doctors, nurses, dentists, engineers and the other highly skilled people that we don't train ourselves."

Unmitigated rubbish! People came and went long before The EU was even dreamed of. Please give a link to the legislation where the UK prevented free travel of foreign nationals pre EU days.
And the idea that we do not train highly skilled people is a joke.
Perhaps a little rephrasing is in order?
and perhaps better research instead of quoting tired old ideology.