So I was in a class of 56 ( primary) in a relatively affluent area of Manchester. Salford by contrast couldn't get teachers for love nor money. My cousin taught there uncertificated ( not supposed to have more than half a class) she had 90 pupils.
The 11+ meant the vast majority of children ( 75-80%) had to leave school at 15 with no qualifications. No access to GCSEs let alone A levels or Higher education. Girls were discriminated against even if they passed the 11+ as there were not enough places for those girls 'passing', in Grammar Schools.
Most Universities discriminated against girls so eg low quotas for Girls trying to study Medicine. Oxbridge had about 3 college each for girls v 30 for boys.
Almost no maternity leave for women. Even in teaching my sister had just 7 weeks after birth.
No sex discrimination act. Women were routinely sacked if pregnant or even if married ( banks notoriously). No equal pay. Women were paid 60-80% of men's pay for doing the SAME work eg Teaching where the NHS ( National Association of school MASTERS, campaigned against equal pay and then split from the National Union of Teachers on this issue.) Women were not allowed mortgages.
Most people had no pension provision from their work. It was retired Union leaders ( Jack Jones etc) and members who campaigned long and hard for better pension provision.
Very little security at work ( people could be sacked on a whim or if they complained about working conditions). ( The Current Government hopefully is stopping 'fire and rehire'.) Many eg dockers had to line up each morning and hope to be picked for a day's work., no health and safety at work. My grandfather was killed at work in a textile factory. His wife and son ( my father ) carried his body home. They got no compensation or help in any way.
All the above ( and much more) is why that generation you despise and envy so much spent their time fighting for better conditions for YOU. Often at great cost to themselves. People who complained, organised strikes etc were blacklsted so they couldn't get work. My uncle was blacklisted for 10 years for protesting.
Whatever rights you now have were fought for by brave people you now despise. Hopefully you too will now join a Union and fight for the rights of people like you at work. ( BTW Unite eg has a Community Section for people not in work.)
If you don't and buy into false histories your problems will become the same as those of who fought through the 50s, 60, 70s etc. Employers are interested in profits, less so about employee welfare unless they are forced to. Unionised workplaces have a better paid work force btw.
It is vital that you inform yourself of the true state of affairs when your parents and grandparents were at work. Being taken in by false narratives plays into the hands of unscrupulous employers and Governments and the super rich ( the richest 50 families in the UK own the same as the poorest 50%, yes HALF the population of the country !, and their wealth has been growing and growing over the last decades.)
They are happy, very happy, for you to target working people of a previous generation as it take your eyes off THEM. It will be too late for you when they have removed the benefits retirees now have, and you are paying the price in your 60, 70s 80s etc.