I don't know, I'm not a doctor. But removing a feeding tube is legal under Florida law specifically because it is established and approved.
You cannot seriously dispute that fact, can you? Has Florida made a move to make it illegal in all cases? Why not? Perhaps because it is a established medical procedure?
I thank the Lord I don't live in Florida - and won't be going anywhere near the place anytime soon!
The forcible starving of anyone is murder. If it was done to a convicted felon, the civil libertarians would go into fits of apoplexy.