I've repeatedly explained to this guy that the State Pension is a contributory welfare benefit and NI is tax, not payments into a pension scheme. So have others. He refuses to listen and continues to spread misinformation.
It is incredibly hard to get people to understand the State Pension when they think "welfare" means getting something for nothing.
This cannot be stressed enough. The State Pension is not ‘welfare’. It is, as Mark says, based on a contract and people paying in accordingly. And far from being ‘unaffordable’ the National Insurance Fund had a surplus of nearly £80bn last year. Something that the ‘axe the Triple Lock’ brigade never mention.