So as not to single out any one party, or demographic group, or lobbying organization or... whatever, why not just do what many major corporations do. If we are over budget we cut. Over by 20 percent, then everyone, every department, every line item, takes a 20 percent cut. Over by 10% then cut 10%. When the pain starts, maybe they'll get serious about prioritizing.
This doesn't necessarily mean that those who receive Social Security will take a 20% cut, what it means is that those who administer Social Security have to find a way to cut 20% of their budget from salaries, waste, and every other item that they have control over.
Will it be painful? Yes. Will people be angry? Yes.
But will anyone ever get serious about the problem if *their* lifestyle is not impacted in any way? No.
As bad as it might be to make broad and serious cuts, it will be far worse if no one was willing to loan us more money to fund the deficit. When (not if) that happens, checks start bouncing and the whole party comes to a screeching halt. That would get really ugly very fast.