At least the Boston Globe — in this warning  against serious reform of Social Security — is (unintentionally?) honest about why it fears reform. The Globe likes Social Security pretty much just the way it is precisely because the middle-class currently have a huge stake in it. The Globe fears that if the middle-class stake in Social Security is taken away, the middle-class will find it easier to oppose government welfare for the truly needy.
Here’s a letter that I sent to the Globe in response.
Editor, The Boston Globe
To the Editor:
You note that the middle-class supports Social Security because of the perceived personal benefits they get from it ("An Insecure System," April 30). Thus, you oppose reform that reduces the middle-class stake in Social Security because you fear that such reform will make it too easy for Americans to stop helping the truly needy. In short, you endorse a massive middle-class entitlement program as a bribe to quiet the bulk of Americans who might otherwise resist being taxed to pay for a safety net for the poor.
Whatever are Social Security’s merits or faults, let’s hear no more about it being a product of a nobler time when Americans, inspired by enlightened statesmen, were persuaded to rise above their narrow self-interests for the benefit of the less fortunate.
Donald J. Boudreaux
Relatedly, see also this excellent op-ed  on Social Security by the New York Times‘ John Tierney.