Completely wrong, except possibly if you're defining Social Security as welfare, in which case honesty would compel you to note that no one draws Social Security except based on having previously made contributions via dedicated taxation for social security.
Just a reminder... Social Security requires 40 quarters (ie, 10 years) of income to even qualify for a pension. And the pension is based on what you earn, which is what you pay into the system.
Only 10 years? Damn, here in many EU countries you need to contribute much longer than that to qualify for receiving a pension. And supposedly we're the "socialist" ones.
There’s a difference between “able to receive” vs. “receive a useful amount”. As I recall they tally one’s contributions when determining payment. But like all government systems it can probably be gamed.
FWIW, social security and Medicare taxes are noticeably higher in the US than Canada. Pay more get more.
I agree that Social Security is not plain welfare, but it has significant welfare components. Simplifying some, you get back something like 90% of the first $15,432 income per year but only 32% of income above that up to $92,988. (And above that, it's 15%.) Only getting 32% back of what you pay in so that the rest can be redistributed to others who made less could be considered partly welfare. Also, if you die too young, you don't get the money back, nor can you give it to your children. It's redistributed to other people. I'm not saying it's bad (I think it's probably good overall), but I can see how it's partly welfare.
