Tools Repair Durability rework

Since Mending makes the game better by breaking the game. What if we could repair our armor and tool back to full durability costing only one material of that weapon, like repairing a diamond pickaxe enchanted or not back to full durability costing only one diamond and you can do it as many time as you like as long as you have the resource.  And when the Tool Durability hit zero instead of the tool vanishing what if it becomes useless and would have the same function as your fist like Sword dealing the same damage as your fist and tools having the same mining speed as your fist regardless whether enchanted or not.

Now repairing would be done by an Anvil but with no level cost and remove the ability to combine enchantment all together but instead make it so the enchantment table function as a way to combine your enchantment since  Anvil being able to combine enchanted books and repair costing level doesn't really makes sense.

With this rework would encourage player to play the game more rather than just enslaving villagers and grinding their way to get Mending. And you can keep your favorite tool throughout your entire playthrough