A rise in the retirement is age is how the poor, the middle class, all of us who have an actual economic need for the SS fund in our old age can contribute to a shared solution for the SS (and medicare) crisis. That will be the biggest chunk, but I for one am not above seeking additional revenue. Maybe income above $113K can be taxed at some extremely low rate.
And if we ever get to a situation where there is an annual SS surplus (and we will when the baby boomers die off) that we should adopt a system where we hold maybe 1-2 years of srplus as a cushion, the start refunding it! Of course, the other side of that coin is that when SS runs a deficit we pay out of general revenue or borrowing