The public sector were recruiting 20’000 odd people a year at that stage. That’s quite a successful record for any organisation.
Have you considered that this may have in response to the vacancies arising by people leaving to join the private sector and/or by the increase to public services (not servants) that the public demanded (and which successive governments where only too happy to provide).
The point is that there was plenty of opportunity to join for anyone who really wanted. To complain now that the people who have these jobs are somehow privileged is just nonsense.
“Some bias towards the Labour Party”, you have to be joking! He spent most of his adult life as a member and working for them. He has criticised government policy and the actions of some state service providers but I never remember his saying that PS pay was too high.
I never heard him denouncing Hitler either but that doesn't make him a Nazi.
I don't care what level of bias he has towards the labour party because frankly it's irrelevant. My point is that he doesn't have any bias (historical or current) towards public servants.