They are leaving.

Drexit (“Doctor-Exit”) is the exponentially growing trend for doctors to walk away from their jobs in the NHS, either to new healthcare systems overseas such as Canada, Australia, New Zealand or perhaps worse, into new professions altogether, leaving behind their well trained medical brains. This exodus has been gaining momentum for several years with the workforce now at breaking point.

https://blogs.bmj.com/bmj/2020/02/06/why-are-so-many-doctors-quitting-the-nhs/

Four in 10 junior doctors are actively planning to quit the NHS as soon as they can find another job, according to a survey by the British Medical Association. The survey, released as part of the BMA chair of council Prof Philip Banfield’s new year message, found poor pay and working conditions were among the main reasons for junior doctors wanting to leave.

https://www.theguardian.com/society/2022/dec/28/four-in-10-junior-doctors-plan-quit-nhs-survey