It's a ridiculously bold statement totally unachievable under the fascists. We can see who dodo's role model in chief is, can't we?
Firstly, state education will need massive investment in order to turn out sufficient numbers of potential home grown medics. So, give that ten years of investment (teachers, state of the art classrooms, laboratories and technology) and another ten years to get the standards sufficiently high whilst maintaining or increasing that investment level of course.
Then you need the capacity to train the thousands of extra British student medics over five years not of course accounting for the prohibitive cost of training these medics and the personal cost to each of them with their student and professional loans. Most poorer background potential medics and their families will simply not tread that road.
By my rough estimates then it would take 20 to 25 years to achieve this lofty aim, purely politically motivated of course but naturally there will be "not a real penny more" to make it happen. It cannot even start without bozo's and the ERG's say so and Rishi writing cheques that UK Plc simply cannot cash.
And whilst dodo is failing in this task but drawing millions in taxpayer relief, er I mean remuneration, there are the parallel tasks of bozo&co of levelling up the north, making the UK world-beating at science, becoming greener by the day, bribing maintaining the grey vote whilst pushing out the state pension entitlement age further and further and somehow paying down the covid bill. And that's just for starters.
My glass just emptied ...