"Secretly," but perhaps in the sense that most are not exclusive enough to have the coverage, disposable income and proximity to specialists. A close family member of mine was diagnosed with stomach cancer at a very young age. I looked into getting an endoscopy and it took more than a month to see my primary for the referral and about seven months out for the endoscopy. The hospital says there a chance insurance will cover nothing.
The difficulty is that we only care about healthcare for everyone when we're affected, not before. Realistically, every man woman and child in the USA should demand better by organizing massive peaceful protests.