Utter and complete rubbish.
The 'boomers' invented most of the 'computer stuff' you use, most 'developers' today are hacks (granted, some are amazing).
Boomers had difficult upbringing, brought real social change, lived through - and ended the Cold War.
Female boomers were expected to be secretaries - and had to fight for the right just to do normal jobs in the workplace.
Even the boys - were expected to do the same jobs their fathers did, mostly boring labour - and only a fraction of them got to go to University.
There was no such thing as 'startups' back in the day - there were zero opportunities for middle class young people to generate wealth or do globally impactful things.
They lived during the draft, and 50 000 of them died in Vietnam.
Millenials are born into massive entitlement, wealth , privilege and opportunity.
You get bored easily, and don't want to do the same job for more than a year - but expect loyalty and long term employment? Yes - boomers had steadier work - but it was also incredibly boring, stagnant - and in real wages, pay was crap.
Boomers could own a small, shoddy home in the suburbs, and were able to have 'a fridge' and 'an oven' and 'a car' - even though they were all crap by today's standards - that was 'The American Dream' and they were generally happy.
If you are born past the fall of the Berlin wall in America - unless you are from a ghetto - you do not know hardship.
As for real estate: the average home price in the US is about $200K. You can afford a home. You just can't be 'Instagram baller'.
As for 'higher positions' - do you think the 'Greatest Generation' just handed over their choice positions to the 'Boomers'? Or do you think it took mostly a lifetime of work and loyalty? If you don't like your job make yourself CEO of your own company. What's stopping you?
American Millenials have more opportunity than any group of people in the entirety of history - enough with your complaining.