You think the current immigration amnesty will not increase the costs of SS? If you have one working guy who comes over and gets to bring all his family...wife, 2 kids, mom, dad, aunts, uncle..... and they are all legal the mom, dad, aunt, uncle will be eligible for social security. They don't have to have ever made a dime in this country. They sign them up under the social security disability program which is SSI/SSP which is essentially a welfare program run by social security.
That is why I do not believe the conspiracy that politicians want all the illegals to shore up SS. It will be a huge sucking sound. Add totalization with Mexico on top of that and you can kiss SS goodbye.