What trust fund?
It’s ALWAYS been an accounting trick.
You pay SS taxes. It goes to Treasury.
Treasury issues special bonds , “trust fund”.
The money is used for general operation of government.
If the government has to redeem those bonds it will need current tax receipts.
There is no other way for the government to handle this process. They have no way of saving or investing money. If for example they “invested” the money in say stocks or real estate , you have actual Socislism, government ownership of property.
Another FBI success.