Imagine this scenario:
You work a full-time job, starting at the age of 18.
You pay the mandatory social security tax on everything that you earn.
You plan to retire at age 65.
You get hit by a truck and die at age 64.
Does your family get your money--the money you earned and were forced to pay to the government? Nope. The government gets to keep it.
So now the question--and I'm not asking it merely rhetorically--can anyone in their right mind not regard this as an act of stealing by the government?