Earlier quoted context omitted.
The only reason other people will pay for my social security is that my contribution is used to pay for previous generation's SS. The scam is that I'm paying for their much better retirement that I will have, considering how population evolves.
Citation needed that they will have a better retirement.
So unless drastic measures are taken now, crap retirement is waiting for us. No need to be a math genius to see. Some people is confident that the problem can be solved with taxes, but that's just wishful thinking.
Obvious solution: increase people that will pay in the future. Problem is we have a sky high unemployement. Even if we allow more inmigration, there are no jobs for them.
Another one: using a "capitalization" system. Instead of spending, save what we pay for later. Problem is no party will do that. A few weeks ago there was a massive demostration demanding retirement is updated with inflation. Everybody agrees that our elders deserve the best. Even a gradual transition to capitalization (the most reasonable measure) would cause the party defending it to sink.
Edit: in my previous comment there's a "that" where there should be a "than", maybe that caused a misundertanding?