It's not the boomers' fault, they were misled into believing the social security system they were paying into was a genuine savings system, not just a perpetual wealth transfer system from the young to the old.
From day one, Social Security was a "new money pays old money" scheme, the one thing that makes it Ponzi-like.
To be fair, the boomers got screwed in the 1980's SS reform to pay for their parents (but had it sweet before), so maybe this is just paying it forward.
It was specifically sold as 'insurance' to the public around the time it was being passed.
Well except for a short period where that was going to be deliberated on by the courts, where they stopped calling it insurance since SCOTUS indicated this insurance wouldn't be constitutional, so instead they put it under general welfare clause but then changed up their rhetoric immediately after it was found constitutional back to it being insurance again.
Also the people that wrote the bill later admitted they intentionally wrote it in a confusing as way to evade public and judicial scrutiny.
FDR essentially pioneered the modern use of the omnibus bill by threatening to veto any assistance to the poor/elderly that didn't include social security. Basically his goal was to make the poor starve if social security didn't pass, and blackmail politicians into being forced to vote for it.
Of course this was all predicated on the other prong, which was the 'switch in time that saved 9' where he also threatened to pack the courts to ensure it was found 'constitutional'. FDR was quite ruthless in his destruction of constitutional and democratic controls, and now so much of our government depends on it that it's effectively politically impossible to unwind.
FDR also bullied Congress into passing laws and threatened their individual reelections using his cult of personality the same way Trump has been doing for a decade now to keep the moderates and fiscal conservatives in his party from making any noise.