Realization...

The right to health is part of our Declaration of Independence:

"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life..."

AND our Constitution:

"promote the general Welfare"

One cannot have life without health, nor can one's welfare be in any way interpreted to be 'Promoted' without it.

Ergo, like racial discrimination, woman's suffrage, Social Security and Medicare...
This is a right whose understanding we have finally begun to realize - Gee, and we're only the second to last nation in the hemisphere to do it.

Like the latter two above, this is the BEGINNING of the implementation - and just as was said about both Social Security and Medicare, it ain't right yet.

On the other hand, this isn't the end of any world we are familiar with.