6. If it’s health care, people assume it’s Obamacare.

So what’s the mystery factor? The best guess is that people are holding the law responsible for all of the problems of the health care system — including those like rising deductibles, narrowing hospital networks, or even long waits at the doctor’s office that most experts believe have little or nothing to do with the law itself.

Maybe the single best example of this is the reaction to rising costs that polls have detected, especially among those largely unaffected by the changes to insurance mandated by the ACA. In the March Kaiser tracking survey, just over a third of Americans with employer-sponsored insurance reported that the new law had “directly hurt” (24 percent) their families. Why? On a follow-up question, most respondents — including 30 percent of all Republicans, 15 percent of independents and 6 percent of Democrats — said it was because the law “increased your health care or health insurance costs.”