3) "Entitlement" is meant as a slur. But Social Security is individuals loaning money, and asking to be repaid for their principal and their interest. None of those people using that word as a slur call the same situation "entitlement", when *they* call in their debts.
4) Social Security is one of the tightest most fraud-proof systems a government has ever made. If fraud happens here, it may, sometimes, it is *miniscule*. Less likely than getting struck by lightning.