This is a very important point. And the current set of changes is not the first time there has been a cost shift because of a reduction in government support. This also occurred in the late sixties and early seventies when the DoD was forced to reduce their (rather large) support to university research programs.
Since tuition is a fraction of actual cost, a shift in the external support produces a disproportionate impact on tuition. When I started teaching at a state school 20 years ago, tuition was ~25% of cost at our institution. It is now a bit more than a third because of the reduction of external support. That means that even if there were no change in costs and no inflation, tuition would go up by 32%. Add to that inflation (and that means real inflation of the goods and services that a university uses) and you can see a serious increase in student cost.
But as they say, it is worse than that. Over the last 20 years there has been a steady stream of legislation at both the state and federal level that has introduced new tasks and concomitantly new expenses. This is over and above inflation and has little positive effect on actual instruction. I would also add clear increases in bureaucratic processes associated with accreditation. The bottom line is that student tuition and fees (don't forget fee escalation) has gone up scandalously. At the same time, I am teaching two to three times as many students (who accordingly get less of my time) than I did when I started. And it is similar for most of my colleagues.
I will be the first to agree that we should be looking at different and more efficient modalities of instruction. But we also need to be thinking clearly about all of the factors influencing tuition. --- not that thoughtfulness is a hallmark of slashdot