Actually it is! What is not a right, in fact forbidden, is to demand someone else pay for it. That is known a slavery.
You have a right to buy or not buy health care, well you did until we allowed Washington to once again violate the Constitution.
The founders did NOT enumerate all rights for a damned good reason and that is exactly for subjects like this.
They could not possible look into the future and cover everything so they tried (too bad we failed them) to protect what was ours and only allow government a limited few. BRILLIANT IMO!
We have all creator given rights and only a few were given to the feds and those remaining were assigned to the states and the rest are still in our bucket.
Insurance is insurance. The provider is taking a risk that you will not cost them a ton of money. They make their money based on premiums paid from low risk policy holders. If the company is of the opinion that you are to much of a risk, then they will not insure you, or make your premiums so expensive that you can't afford it.
It's like a parachute. You get one when you don't need it, because if you need it and you don't have it, you can't get it.
Healthcare is not a right. Education is not a right. Prosperity is not a right.