We assume social insurance is good for the welfare of society.
Every civilized society provides for its least fortunate. It defines who are we are.
It separates us from the barbarians of the past and today who say today nothing we do makes a difference.
We’re better off because of it and God asks us to do it as an ethical obligation and not because we feel like being generous.
for the record....
how do we know that the barbarians didn’t care for their own?
Anything done without someone’s consent, with a gun offered as the sole reason one can do it, can’t claim to be good. The moral is the chosen, not the forced.
“We assume social insurance is good for the welfare of society”
You assume wrongly.