If your dog tries to rip your face off, you do not "try to understand it from his point of view," you do not "appease him" and you do not "try to stay under his bite threshold."
You euthanise him. Unless there are extremely extenuating circumstances (like - he's trapped in something and in pain and you're trying to get him out which is hurting him more, or he's been trained to guard and you're sneaking into your house with a mask on). Taking his bone away is not an extenuating circumstance.
If you are a very experienced trainer you may have a hope of rehabilitating a dog like this. Chances are, though, that you are the idiot that set up the situation where the dog was prepared to attack you in the first place by being a fucking biscuit-waver, and you'd have no hope. You're better off ringing the vet.
I don't think the biscuit-wavers would approve of my methods, but they'd bloodywell work.
My apologies for all the swearing. I hate it when a dog has to die because his owner is too stupid to discipline him consistently.