Kind of hard to completely argue the point when with the exception of those who die relatively young after retirement damn near everybody will get more than they put into it, even adjusting for inflation. (Then again maybe not forever as the US life expectancy is actually going down to show how sad things are getting.) So yeah all those people are handed benefits while no longer contributing just for the continued act of being able to breathe. Not that I'm complaining as I want to actually help people. I'm more pissed that their are billionaires and very profitable corporations that pay hardly any tax.
One would also have to somehow ignore that all that taxes that illegals pay while working they might not even get back in the same way as everybody else, because you know, they're illegal. So they contribute more than people think, while getting less back. I also think most people that bitch about them, would also be the same people that would bitch if they walked into a grocery store and a large selection of the food was significantly more expensive because immigrants stopped being exploited for their cheap labor.
