I agree with you - the bloke who is wingeing for the youth of today has no clue what he is on about.
There was much lower home ownership in the 60's and earlier - it was difficult to get mortgages - most working people rented.
There was high youth unemployment in the 70's and 80's - so what - get a job and get over it. Many students back then worked part time in pubs or restaurants or on building sites I recall. Why can't the current lot do that? Not interesting enough?
The youth have not contributed anything yet by definition.
It all boils down to house prices - if they were not rising (result of credit deregulation in the 80's) no-one would be that bothered. Only those who have saved have a decent pension and a home - and many were fleeced by pension mis-selling in the 80's and 90's.