I don't see where we give everyone the right to healthcare. Certainly not equal healthcare. The alternative is if you can't pay we let you die which would lead to anarchy. Senior citizens on a rampage.
If you have insurance and look at a bill you'll see the doctor/hospital rate and then the agreed upon insurance rate which is much less. When someone does not have insurance you and I pick up the tab but at the original rate. Plus they tend to visit emergency where they have to be treated instead of a regular doctor which is much cheaper. In other words it would be cheaper for us taxpayers to buy them insurance than to keep footing the bill at the larger rate or dealing with the economic fallout of anarchy. Plus if we offer regular checkups we'd reduce long term costs by catching or preventing much costlier future bad ju ju. Even if we let them die we'd need to pay someone to dispose of the bodies unless you want that stink around.